Relevant bibliographies by topics / Static and Fatigue analysis

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Static and Fatigue analysis'

Author: Grafiati
Published: 2 June 2025
Last updated: 22 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Static and Fatigue analysis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Static and Fatigue analysis"

1

Liao, Shu Hua, Peng Xu, Liang Zhao, Hai Jian Li, and Kun Chen. "Radial Fatigue Analysis of Steel Hub Based on Finite Element Analysis." Applied Mechanics and Materials 513-517 (February 2014): 2620–24. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.2620.

Full text
Abstract:
The fatigue strength of the steel hub is important to the safety of the automotive wheel and the dynamic radial fatigue test is also one of the three performance experiments for evaluating the safety of automotive wheel. This paper applied Abaqus in analyzing the static strength of the 13×4.5B automotive steel hub according to the test requirement of national standard, and to calculate the hubs fatigue life by Fatigue. Compare the FEA result and the test result, find the two results are very closer which proved the correctness of the static strength analysis and the fatigue strength analysis, and the FEA simulation can efficiently predict the fatigue life of automotive wheel and it does a good for the wheel design to reduce the design cost and to shorten the development cycle.
APA, Harvard, Vancouver, ISO, and other styles
2

Zhang, Yifan, Yunlei Ma, and Mingyu Liang. "Fatigue Crack Extension and Life Calculation Based on Finite Element Analysis." Highlights in Science, Engineering and Technology 63 (August 8, 2023): 204–9. http://dx.doi.org/10.54097/hset.v63i.10877.

Full text
Abstract:
With compact tension specimen static stress analysis and fatigue life of crack as the research object, through the three-dimensional modeling software to establish compact tension specimen, using the finite element analysis software to sample statics analysis, get the maximum deformation and maximum stress, and the compact tensile samples prefabricated crack, using the fatigue crack propagation analysis software, The cycle times and a-N curves were obtained. This method can be used to calculate the fatigue crack propagation life and visualize the crack propagation process, which is convenient to analyze and master the fatigue mechanism.
APA, Harvard, Vancouver, ISO, and other styles
3

Tsivouraki, Niki, Konstantinos Tserpes, and Ioannis Sioutis. "Modelling of Fatigue Delamination Growth and Prediction of Residual Tensile Strength of Thermoplastic Coupons." Materials 17, no. 2 (2024): 362. http://dx.doi.org/10.3390/ma17020362.

Full text
Abstract:
Thermoplastic composites are continuously replacing thermosetting composites in lightweight structures. However, the accomplished work on the fatigue behavior of thermoplastics is quite limited. In the present work, we propose a numerical modeling approach for simulating fatigue delamination growth and predicting the residual tensile strength of quasi-isotropic TC 1225 LM PAEK thermoplastic coupons. The approach was supported and validated by tension and fatigue (non-interrupted and interrupted) tests. Fatigue delamination growth was simulated using a mixed-mode fatigue crack growth model, which was based on the cohesive zone modeling method. Quasi-static tension analyses on pristine and fatigued coupons were performed using a progressive damage model. These analyses were implemented using a set of Hashin-type strain-based failure criteria and a damage mechanics-based material property degradation module. Utilizing the fatigue model, we accurately foretold the expansion of delamination concerning the cycle count across all interfaces. The results agree well with C-scan images taken on fatigued coupons during interruptions of fatigue tests. An unequal and unsymmetric delamination growth was predicted due to the quasi-isotropic layup. Moreover, the combined models capture the decrease in the residual tensile strength of the coupons. During the quasi-static tension analysis of the fatigued coupons, we observed that the primary driving failure mechanisms were the rapid spread of existing delamination and the consequential severe matrix cracking.
APA, Harvard, Vancouver, ISO, and other styles
4

Li, Yuhan, Tianrui Zheng, and Ling Xu. "Strength test analysis of intercity locomotive frame." Journal of Physics: Conference Series 2951, no. 1 (2025): 012062. https://doi.org/10.1088/1742-6596/2951/1/012062.

Full text
Abstract:
Abstract The intercity locomotive bogie is a crucial transportation infrastructure component, with the frame serving as a vital load-bearing element. Its mechanical properties significantly influence the support of the car body and ensure the stable operation of locomotive vehicles. To enhance the fatigue reliability of the bogie frame and provide relevant data, this study focuses on analyzing the frame’s strength in both the design and manufacturing stages, based on the bogie of a specific intercity locomotive. The investigation follows the EN13749 and UIC615-4 standards to assess the static and fatigue strength of the frame. First, the static strength of the frame was tested under the corresponding loads. Next, the fatigue strength was evaluated after subjecting the frame to several fatigue cycles. The test results indicated that the frame’s static strength met the specified requirements. Fatigue strength was assessed by using a simulated operating environment, with stress amplitudes at each measurement point falling within the material’s fatigue limit, as outlined by the Goodman diagram. Following 10 million load cycles, no cracks were detected during non-destructive testing, confirming that the frame passed the fatigue test.
APA, Harvard, Vancouver, ISO, and other styles
5

Ang, Yoon Zuan, and Pei Xuan Ku. "Study on Failure Analysis of Crankshaft Using Finite Element Analysis." MATEC Web of Conferences 335 (2021): 03001. http://dx.doi.org/10.1051/matecconf/202133503001.

Full text
Abstract:
Crankshaft is one of the crucial parts for the internal combustion engine which required effective and precise working. In this study, the aim of the study is to identify the stress state in the crankshaft and to explain the failure in automotive crankshaft and fatigue life of crankshaft by using finite element analysis. The 3D solid modelling of the crankshaft model was designed and developed using SolidWorks. A static structural and dynamic analysis on an L-twin cylinder crankshaft were used to determine the maximum equivalent stress and total deformation at critical locations of the crankshaft. The model was tested under dynamic loading conditions to determine fatigue life, safety factor, equivalent alternating stress and damage using the fatigue tool. The results obtained from this study indicated that the crankshaft has obvious fatigue crack which was belongs to fatigue fracture. The fatigue fracture developed was only attributed to the propagating and initiate cracks on the edges of the lubrication hole under cyclic bending and torsion. Overall, the crankshaft is safe for both static and fatigue loadings. In dynamic analysis, the critical frequency obtained in the frequency response curve should be avoided which it may cause failure of the crankshaft.
APA, Harvard, Vancouver, ISO, and other styles
6

Fan, Wen Xue, and Fu Rong Chen. "Application of Finite Element Software in Fatigue Analysis of the Welded Joints." Advanced Materials Research 337 (September 2011): 372–78. http://dx.doi.org/10.4028/www.scientific.net/amr.337.372.

Full text
Abstract:
Based on the fatigue behaviors of welded structure and the distinction between static fatigue and vibration fatigue and sound fatigue, the general fatigue analysis methods of static fatigue and vibration fatigue are introduced in this paper, such as nominal stress method, structure stress method, hot stress method and power spectral density method. Especially application status and common software of finite element analysis are expounded and analyzed in fatigue analysis of the welded joint. In recent years, finite element technology is applied widely on analysis all kinds of welded joints, the main problems include two points, built suitable model and generated reasonable mesh. Nowadays, finite element software has many kinds of usage and different software has different functions. According to the stress analysis process of static fatigue and vibration fatigue, three large-scale general finite element software ANSYS, MSC.NASTRAN/PANTRAN and ABAQUS, some comparative analyses have been done in building model, partitioning mesh and applying method At last some important conclusions are given. Different finite element software has equivalent development background and reliable analysis performance. Different finite element software have different application platform. In order to get better analysis result, each other’s merits are drew from different software and matched with the application.
APA, Harvard, Vancouver, ISO, and other styles
7

Pan, Zhi Yuan, and Ming Yan. "Experimental Investigation and Stress Analysis on Static Fatigue Property of Optical Fiber." Advanced Materials Research 531 (June 2012): 642–46. http://dx.doi.org/10.4028/www.scientific.net/amr.531.642.

Full text
Abstract:
This paper mainly presents experimental investigation and stress analysis on static fatigue property of optical fiber. By analyzing the weibull distribution of experiment, the weibull modulus was obtained. From the weibull distribution, the modulus decreased continuously with the decrease of stress, and a conclusion that experiment distributes discretely can also be drawn. Simultaneously, based on the experiment, we also obtain the feature life of optical fiber in different stress and s-t curve of the static fatigue experiment, as well as the analytical expression of static fatigue .
APA, Harvard, Vancouver, ISO, and other styles
8

Liu, Fangping, Chen Yu, and Wentao Yi. "Study on equivalent static method for the analysis of fatigue behavior of reinforced concrete beam." E3S Web of Conferences 272 (2021): 02018. http://dx.doi.org/10.1051/e3sconf/202127202018.

Full text
Abstract:
In order to analyze the whole process of fatigue behaviours of reinforced concrete beams, an equivalent static analysis method is proposed in this paper. Firstly, the constitutive models based on the degradation of stiffness and strength and the accumulation of residual strain of concrete and reinforcement subjected to fatigue loadings are deduced and established by coupling the uniaxial constitutive model of concrete and the ideal elastic-plastic model of reinforcement under static load. Secondly, based on the similarity of concrete failure under static load and fatigue load, the equivalent relationship between fatigue and static analysis can be constructed by using the concrete residual strain as the equivalent parameter. On this basis, an equivalent static method for the analysis of fatigue behavior of reinforced concrete beam is proposed. At last, three reinforced concrete beams with rectangular section are tested, and the fatigue behaviours are analyzed by the method proposed in this paper. The numerical simulation results are compared with the field test data. The result shows that the numerical simulation results are in good agreement with the experimental results, which verifies the reliability and practicability of the method.
APA, Harvard, Vancouver, ISO, and other styles
9

Li, Qing Song, and Shao Ping Meng. "The Finite Element Analysis of Fatigue Performance of Precracked Concrete Beams Strengthened with Prestressed CFRP." Advanced Materials Research 250-253 (May 2011): 3320–27. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.3320.

Full text
Abstract:
The research conducts the numerical analysis of the fatigue performance of precracked concrete beams strengthened with prestressed CFRP, establishing the static analysis model (SM) and fatigue analysis model (FM) respectively, examining the change of the static loading and fatigue performance before and after CFRP strengthens precracked concrete beams in the different prestressed situations, and analyzing the relevant fatigue performance parameters through comparing FEM analysis with experimental results. The research results demonstrate that the method of strengthening concrete beams with prestressed CFRP can improve the static loading and fatigue performance; the increased rate of fatigue performance of precracked concrete beams is parallel to the CFRP prestress; the fatigue life of precracked concrete beams increases with the raising of the CFRP prestress; FEM analysis is in close agreement with experiment results; the fatigue properties of precracked concrete beams strengthened with prestressed CFRP can be analyzed effectively by the finite element method.
APA, Harvard, Vancouver, ISO, and other styles
10

Zhuo, Yi, Lina Ma, Sanyuan Li, Shaopu Su, and Lei Li. "Test Study on Strength of Laser Additive Manufacture AF1410 Steel I-Shaped Beam." Journal of Physics: Conference Series 2403, no. 1 (2022): 012007. http://dx.doi.org/10.1088/1742-6596/2403/1/012007.

Full text
Abstract:
Abstract The static and fatigue strength of laser additive manufactured AF1410 steel I-beam were tested by a four-point bending test, and the same method was used to test the conventional forged, machined AF1410 short steel beams. The fatigues test data of both short beams were analyzed by DFR method. The test and analysis results show that the static strength of laser additive short beams is close to conventionally fabricated short beams, and the fatigue performance is weaker than that of forged, machined short beams.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Static and Fatigue analysis"

1

Al-Azzawi, Ahmad. "Analysis of static and fatigue damage in aluminium/GFRP hybrid composites." Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/106742/.

Full text
Abstract:
This study has focused on investigating the initiation, propagation and effects of damage in fibre-metal laminates (FMLs) specifically Glare® 4B under buckling, postbuckling and high cycle fatigue through the use of novel numerical and experimental techniques. In terms of numerical analysis, a 3D user-defined cohesive zone model (CZM) has been generated to simulate delamination initiation and growth in specimens under static compressive stresses, using the software Abaqus. The generated models have been validated using a comprehensive literature review in order to gather reliable mechanical properties for the Glare® material constituents. Following this, a modified cohesive zone model (CZM) based on a trapezoidal traction-separation law has been developed by the author to simulate damage evolution under high cycle fatigue loading. This model was implemented through a user-written VUMAT subroutine working through the interface of Abaqus/Explicit software. This model is able to simulate elastic-plastic interfacial damage behaviour and as such is suitable for ductile adhesives including toughened epoxy unlike bilinear cohesive zone models which can only accurately simulate damage in brittle adhesives. This makes it suitable for modelling any material interface which incorporates ductile adhesives. The numerical buckling results were validated using a series of experimental tests conducted on Glare® 4B specimens containing splice and doubler features in addition to flat specimens containing artificial circular delamination manufactured by Airbus Germany, demonstrating the ability of the models developed to predict the onset and propagation of damage. Experimental fatigue tests were then implemented on Glare® 4B specimens containing splice and doubler features manufactured in-house, to Abstract iii obtain fatigue life for these types of joints, with fatigue parameters extracted from literature on similar grades of Glare® used to validate the trapezoidal traction-separation law based cohesive zone model. Static tests were monitored using Digital Image Correlation (DIC) to provide full-field displacement data and Acoustic Emission (AE) for the detection and location of the damage using traditional AE analysis and novel Delta-T techniques respectively, with Acoustic Emission (AE) using traditional AE analysis technique being used for damage detection under fatigue loading. Finite element models were also generated to model the buckling and postbuckling behaviour of Glare specimens containing splice and doubler joints and showed good agreement with experiments in terms of in-plane and out-of-plane displacements. In experiments, artificial delaminations representative of those which could potentially be generated during manufacturing had a negligible effect on the compressive strength of specimens. Acoustic Emission (AE) was successfully used to detect and locate damage initiation and propagation under buckling loads. Of particular importance in this body of work are the implementation of a trapezoidal traction separation model to predict the initiation and propagation of damage in elastic-plastic materials such as the resin used in the Fibre Metal Laminate Glare under high cycle fatigue and the detection and location of this damage using a bespoke mapping algorithm for the interpretation of Acoustic Emission data.
APA, Harvard, Vancouver, ISO, and other styles
2

Olsson, Andreas, and Joel Sundström. "Fatigue Analysis of Threaded Holes : A project performed at ÅF using static structural analysis in ANSYS." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206905.

Full text
Abstract:
The effect of a plain hole on the fatigue properties of a body undergoing uniaxial loading is a well-studied area. However, for the case of threaded holes that are not being used together with a bolt, little can be found in the literature. In this project, stress concentration factors, Ktn, for threaded holes, following the ISO metric standard, have been calculated using finite element models in ANSYS. Based on theser esults, estimations of the fatigue notch factor, Ktf , for the threaded holes were derived. The magnitude of Ktf depends on how the notch sensitivity index, q, is being determined. In this project, both Neuber’s and Peterson’s formulas were used as estimates of q and a comparison between the two methods was made. The stress concentration factors for the threaded holes were significantly higher than the corresponding stress concentration factors for plain holes. As the size of the hole and the surrounding body was increased, Ktn decreased. In the fatigue analysis, Peterson’s formula predicted higher values of the fatigue notch factor compared to Neuber’s and could therefore be useful in design purposes. Furthermore, the reduction in fatigue strength for the threaded holes, compared to the plain holes, was calculated. These results showed that the percentage decrease in fatigue strength for threaded holes was approximately the same, regardless if Neuber’s or Peterson’s estimation of q was used. The reduction in fatigue strength for threaded holes with a coarse pitch, compared to plain holes, varied from about 16 % for the smallest diameter tested(M6) to about 10 % for the biggest (M68). The corresponding reduction for threaded holes with a fine pitch varied from about 14 % for the smallest diameter (M6) to about 9 % for the biggest (M64). As the size of the hole and the surrounding body was increased, the threads’ effect on the fatigue strength decreased.
APA, Harvard, Vancouver, ISO, and other styles
3

Karlsson, Hanna. "Static and Fatigue Analyses of Welded Joints in Thin-Walled Tubes." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16779.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Righi, Bento Pereira Rafael. "Dynamic Analysis and Fatigue Assessment of a Jacket-type Offshore Platform." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

Find full text
Abstract:
This work aims to evaluate the environmental loads and make the fatigue analysis in a Jacket-type platform situated in the North sea.Under this line of thought. Then, a static and a dynamic fatigue analysis are evaluated and compared.
APA, Harvard, Vancouver, ISO, and other styles
5

Obst, Andreas W. "Nonlinear static and transient analysis of generally laminated beams." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10102009-020113/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tsigkourakos, George. "Experimental and numerical analysis of damage in CFRP laminates under static and impact loading conditions." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13284.

Full text
Abstract:
Engineering composites and especially long fibre carbon composites have been in high demand not only in aerospace and automotive applications, but also in high end everyday applications. In aerospace, carbon composites are used predominantly for secondary structures attached by joints or fasteners to various alloys or even different composites, and are exposed to service loads and repetitive impacting. Impact fatigue (IF) is not studied adequately for long cycles and relevant literature is investigating mainly drop weight tests and high speed projectile experiments. The main aim of this research was to investigate the behaviour long fibre CFRP'S exposed to repeated low-velocity, low energy impacts, and to observe the damage effects of this regime on the structural integrity of these materials. Two types of specimen configurations using CFRPS's were used and exposed to loading conditions relevant to the Izod impact fatigue test (IIFT), and the tensile impact fatigue test (TIFT), in order to determine the fatigue behaviour of the specimens for each of these load conditions. For the IIFT, the fatigue life was investigated using IM7/8552 unidirectional specimens and T700/LTM45 cross-ply specimens were utilised for the TIFT. The specimen thicknesses were altered in both cases and parametric studies were carried out, where it was seen that IF results in high level of scatter and the apparent decrease in life was seen at relatively modest levels of maximum force after relatively few cycles. In the case of the IIFT, a durability limit was not apparent which increases the complications when designing against IF. In the case of the TIFT the stiffness deterioration was reflected as an increase of the loading time, in the force vs time graph, over the total fatigue life span. Fatigue crack growth was investigated using fractography and X-ray micro-CT at the micro and macro level. It was seen, that IF had the potential to initiate cracks and to cause their propagation at low levels of loading. For the IIFT, a single crack was growing substantially in the fibre direction and across the sample width causing matrix cracking and probably breaking of some fibres, which acted as impact wave guides since matrix cracks were propagating initially along the length of the fibres. In the case of the TIFT multiple damage modes were presented (matrix cracks, axial splits and delaminations). Their sequence and progression was successfully v captured and contrasted against the number of impacts. Axial splits governed the damage scenario, with delaminations extending between them and the free edges. For the TIFT, IF was studied using the force-life (F-Nf) and energy-life (E-Nf) curves. The tests undertaken showed that when halving the thickness of the laminates the fatigue life presented a 10-fold decrease as well as higher scatter. Finite element modelling was undertaken to validate the experimental data of the TIFT test. Successful simulation of a single impact was carried out using a fully transient 3-D model of the actual experiment configuration which involved geometric non-linearities in addition to the multiple contact conditions. The analysis was undertaken using the Abaqus 6.11 explicit solver. Since the numerical single impact results (force vs time response) was in agreement with the experimental results, the crack modes, experimentally observed, were also incorporated in the model utilising the use of the cohesive zone elements (CZE).
APA, Harvard, Vancouver, ISO, and other styles
7

Khurshid, Mansoor. "Static and fatigue analyses of welded steel structures : some aspects towards lightweight design." Doctoral thesis, KTH, Lättkonstruktioner, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-200829.

Full text
Abstract:
The objectives of this thesis comprise of overcoming the challenges in designing lightweight welded structures such as material selection, choice of fatigue design methods, and increased performance by using improvement techniques. Material selection of welded joints is dependent on the filler and base material strengths. Partially and fully penetrated cruciform and butt welded joints were designed in under-matching, matching, and over-matching filler materials. Base material steel grades were S600MC, S700MC, and S960. Current design rules are developed for welds in steel up to yield strength of 700MPa. Therefore, design rules in Eurocode3, AWS d1.1, and BSK 07 were verified and recommendations for developing design rules for designing welded joints in S960 were concluded. Numerical methodology for estimating static strength of welded joints by simulating heat affected zone was also developed. Another objective of the thesis work was to overcome the challenges in selection of fatigue design methods. The available design curves in standards are developed for uniaxial stress states, however, in real life the welds in mechanical structures are subjected to complex multiaxial stress states. Furthermore; weld toe failures are frequently investigated, weld root failures are seldom investigated. Therefore, in this work the multiaxial fatigue strength of welded joints failing at the weld root was assessed using experiments and various nominal and local stress based approaches. Butt welded joints with different weld seam inclinations with respect to applied uniaxial loading were designed to assess the root fatigue strength in higher multiaxial stress ratio regime. The fatigue strength of multi-pass tube-to-plate welded joints subjected to internal pressure only and combined internal pressure and torsion in and 90° out of phase loading was also investigated. Test data generated in this thesis was evaluated together with the test data collected from literature. Last objective of the thesis included investigation of the increased performance in fatigue strength by post weld treatment methods such as HFMI. The behavior of residual stresses induced due to HFMI treatment during fatigue loading is studied. Numerical residual stress estimations and residual stress relaxation models are developed and the effect of various HFMI treatment process parameters and steel grade on the induced residual stress state is investigated. Specimens studied were non load carrying longitudinal attachments and simple plates. Residual stresses in both test specimens were measured using X-ray diffraction technique.<br><p>QC 20170206</p>
APA, Harvard, Vancouver, ISO, and other styles
8

Djukic, Luke Philip Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Effects of thermal residual stresses on static strength and fatigue life of welded carbon-fibre/epoxy composite joints." Awarded By:University of New South Wales. Mechanical & Manufacturing Engineering, 2010. http://handle.unsw.edu.au/1959.4/44619.

Full text
Abstract:
Thermoset Composite Welding (TCW) is a process designed specifically for joining composite materials, developed by the Cooperative Research Centre for Advanced Composite Structures (CRC-ACS). The TCW manufacture process is carried out at higher temperatures than those used in service, causing thermal residual (TR) stresses to develop in the joints. An investigation of the strength of single-lap shear joints (SLJs), and the development of laminate free edge microcracks (LFEMs) is presented in this thesis. The reported investigations are primarily experimental. Finite element analysis has been used to understand observations where appropriate. The effect of TR stresses on static failure of TCW SLJs and Cytec FM1515 thin film epoxy adhesive SLJs over the temperature range of -55??C to 71??C is investigated. At temperatures where the joining material is ductile, plastic flow results in the redistribution of TR stresses within the joints, reducing their effect on the failure strength. No such stress redistributions occur at lower temperatures when the joining material is brittle; hence, the TR stresses cause strength reductions. These results were used to propose a method of shear strength improvement by initiating plastic flow in the joint at the time of manufacture. Microcracks are common at the free edges of thermoset composites. These develop preferentially near the weld material interface in TCW laminates, and are termed laminate free edge microcracks (LFEMs) in this study. MicroCT scanning was used to find and characterise LFEMs in TCW joints. The results indicated that TR stresses combined with the free edge sectioning process cause their development outside the joint overlap regions. Microcracks developed within the joint overlaps during mechanical fatigue cycling. LFEMs were also found in FM1515 joints. A fatigue life study is presented for TCW and FM1515 SLJs at -55??C, in which the effect of LFEMs is considered. TCW is a new process. This investigation is the first dealing with the effect of thermal residual stresses on the strength of TCW joints, and the development and effect of LFEMs. The shear strength improvement method is also a novel concept for joints.
APA, Harvard, Vancouver, ISO, and other styles
9

Abdelal, Nisrin Rizek. "Effects of Voids on Delamination Behavior Under Static and Fatigue Mode I and Mode II." University of Dayton / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1365418463.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Puigvert, Cobos Francesc. "Analysis of circular bond-type anchorages for prestressing composite rods under quasi-static, fatigue and time-dependent loads." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/284216.

Full text
Abstract:
En estructures pretesades sotmeses a ambients corrosius, s'està estudiant la possibilitat de substituir els tendons d’acer per tendons que no pateixin els efectes de la corrosió. En aquest sentit, els materials compostos Fibre Reinforced Polymer (FRP) són una opció duradora en el disseny d'estructures de formigó pretesat degut a les seves altes propietats mecàniques, pes lleuger i alta resistència a la corrosió. No obstant, un dels reptes associats amb aquesta opció es troba en el desenvolupament d'un sistema d'ancoratge adequat per als tendons de FRP . Per això aquesta investigació ha estudiat la resposta mecànica d’ancoratges d’unió adhesiva per a tendons de FRP sota càrregues quasi-estàtiques, de fatiga i en funció del temps. Aquest objectiu s'ha aconseguit mitjançant la combinació d'una campanya experimental i un treball de modelatge amb el mètode dels elements finits. En aquest sentit s’han dut a terme assaigs experimentals quasi-estàtics en els ancoratges d’unió adhesiva, observant que la ruptura del sistema es produïa en la unió adhesiva entre l’adhesiu i el tendó. En conseqüència, les principals variables estudiades van ser l’espessor de l'adhesiu i la longitud d’adhesió. A través d’una campanya de modelatge numèric amb diferents models, de complexitat creixent, del material adhesiu, es va investigar la resposta quasi-estàtica de l'ancoratge i el seu mecanisme de fallada. El model numèric va ser capaç de predir les dades enregistrades experimentalment quan el modelatge de l’adhesiu es va realitzar amb elements cohesius amb dany progressiu. A més, s’ha desenvolupat una formulació analítica (i validat amb èxit) amb l'objectiu de proporcionar una distribució aproximada de les tensions de tall que es produeixen en la capa adhesiva per ancoratges amb adhesius que es comporten principalment elàstic lineal fins a ruptura. D’altra banda l'ancoratge d’unió adhesiva també es va investigar sota els fenòmens dependents del temps. Per això es van dur a terme assaigs de fluència en unions simples Single Lap Joints ( SLJs ), per tal d'obtenir una llei experimental de fluència, i es van realitzar assaigs de relaxació de la tensió en els ancoratges per estudiar la pèrdua de càrrega en funció del temps. Durant aquests assaigs de relaxació es va estudiar la tècnica del retesat amb l’objectiu d’estudiar l’evolució de les pèrdues de tensió. Es va observar que la tècnica del retesat permet assolir càrregues de treball superiors amb una pèrdua de càrrega mínima. A més a través d’un model visco-plàstic es va predir el temps de fallada a fluència de les SLJs i els ancoratges, basat en la llei de Bailey-Norton i calibrat amb les dades experimentals obtingudes en els assaigs de fluència de les SLJs. El dany de fluència es va modelar mitjançant la degradació de la tensió de fluència plàstica de l'adhesiu i el model numèric es va utilitzar per predir la pèrdua de càrrega dels ancoratges sota el fenomen de relaxació de la tensió. Els resultats enregistrats experimentalment van ser predits adequadament amb el model numèric proposat. Finalment, es va investigar la resposta a la fatiga dels ancoratges d’unió adhesiva. Es van avaluar quatre configuracions d’ancoratge sota tres càrregues de fatiga d'amplitud constant. Els resultats experimentals van permetre l’obtenció d’una corba de vida a fatiga dels ancoratges en funció del nombre de cicles. Mitjançant el mètode d’elements finits, també es va investigar el comportament a fatiga. La llei cohesiva obtinguda en l'anàlisi quasi-estàtic es va utilitzar en el model de la fatiga, on el dany per fatiga s’ha basat en la degradació de les propietats dels elements cohesius. El model numèric va predir amb èxit l'evolució dany per fatiga i la vida per fatiga observada experimentalment . A partir del treball experimental i numèric realitzat en aquesta recerca, es proposen les recomanacions més pertinents per a un possible ús dels ancoratges d’unió adhesiva per tendons FRP en aplicacions de pretensat.<br>In prestressed structures subjected to corrosive environments, consideration is being given to replacing the steels tendons with non-corrosive tendons. In this respect, Fibre Reinforced Polymer (FRP) materials are a durable option in the design of prestressed concrete structures for use in corrosive environments due to their high mechanical properties, light weight and high resistance to corrosion. However, one of the challenges associated with this option lies in developing a suitable anchorage system for FRP tendons. In the present work, the mechanical response of circular adhesively bonded anchorages for FRP tendons has been investigated under quasi-static, time-dependent and fatigue loading. This has been achieved through a combination of an experimental campaign and finite element modelling work. Experimental quasi-static tests of adhesively bonded anchorages were undertaken with failure occurring in the adhesive-tendon interface. The main variables assessed were the adhesive thickness and the bonded length. In order to investigate the quasi-static response of the bonded anchorage and its failure mechanism, a campaign of numerical modelling was carried out with different material models of increasing complexity for the adhesive layer. A cohesive zone model with progressive damage in the bonded joint was found to be in reasonable agreement with the experimentally recorded data. Additionally, an analytical formulation was developed (and validated against experimental data) with the aim to provide an approximate shear stress distribution in the bonded joint for circular anchors with adhesives which mainly behave linearly elastic up to failure. The adhesively bonded anchor for FRP tendons was also investigated under the time-dependent phenomena. Creep tests on Single Lap Joints (SLJs) were conducted in order to obtain an experimental creep law whereas stress relaxation tests were conducted on adhesively bonded anchorages to study the load loss in time. Furthermore, the restressing technique was assessed during the stress relaxation tests by restressing the specimens, to the original tensioning load, when the load loss was stabilised and constant. It was found that the restressing technique allows for the working load of the composite tendon to be reached with a minimum load loss. A visco-plastic material model, based on the Bailey-Norton law, was calibrated with the experimental data obtained from the creep tests and utilised to predict the creep time to failure of SLJs and anchorages. The creep damage was modelled by degrading the plastic yield stress of the adhesive. The viscoelastic model was also used to predict the load loss of the anchors under the stress relaxation phenomenon. The predicted load loss results were found to be in good agreement with the experimental results recorded. Finally, the fatigue response of the bonded anchorages was investigated. Anchorages with four different adhesive thicknesses were evaluated under three constant amplitude fatigue loadings. The experimental fatigue response of adhesively bonded anchorages was discussed and an experimental load-life average curve was obtained for all the anchorages. The fatigue behaviour was also predicted using Finite Element Analysis. A multi-linear traction-separation cohesive zone model was implemented at the adhesive-tendon interface. The cohesive law obtained in the quasi-static analysis was utilised in the fatigue model. The fatigue damage model utilised in this research was based on the degradation of the cohesive elements taking into account the fatigue damage evolution. The damage model was able to successfully predict the fatigue damage evolution and failure life experimentally observed. From the experimental and numerical work conducted in this investigation, the most relevant recommendations are proposed for a potential use of adhesively bonded anchorages for CFRP tendons in prestressing applications.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Static and Fatigue analysis"

1

Allen, David H. Analysis of static contact in laminated composite plates using damage mechanics: Final technical report. NASA Langley Research Center, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Center, Langley Research, ed. Analysis of static contact in laminated composite plates using damage mechanics: Final technical report. NASA Langley Research Center, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Drăgoi, Cezara, Suvam Mukherjee, and Kedar Namjoshi, eds. Static Analysis. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-88806-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Logozzo, Francesco, and Manuel Fähndrich, eds. Static Analysis. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38856-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Cousot, Radhia, ed. Static Analysis. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-44898-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Cortesi, Agostino, and Gilberto Filé, eds. Static Analysis. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-48294-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Cousot, Patrick, ed. Static Analysis. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-47764-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Nielson, Hanne Riis, and Gilberto Filé, eds. Static Analysis. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-74061-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Blazy, Sandrine, and Thomas Jensen, eds. Static Analysis. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48288-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Mycroft, Alan, ed. Static Analysis. Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/3-540-60360-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Static and Fatigue analysis"

1

Singh, Sudhir Kumar, Tafhim Eqbal, and Vaibhav Gupta. "Static and Fatigue Analysis of Boiler Shell with Circumferential Riveted Joint." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2382-3_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mostakhdemin, Mohammad, Iraj Sadegh Amiri, and Ardiyansyah Syahrom. "Result and Discussion of Static and Dynamic Analysis of Trabecular Bone." In Multi-axial Fatigue of Trabecular Bone with Respect to Normal Walking. Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-621-8_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Haggui, M., A. El Mahi, Z. Jendli, A. Akrout, and M. Haddar. "Damage Analysis of Flax Fibre/Elium Composite Under Static and Fatigue Testing." In Design and Modeling of Mechanical Systems—III. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-66697-6_66.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Palettas, Panickos N., Prem K. Goel, and Purushottam W. Laud. "Bayesian Modeling For Fatigue Crack Curves." In Survival Analysis: State of the Art. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-7983-4_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Sreedhara, H., H. Dineshkumar, and V. R. Ranganath. "Experimental Evaluation of Laminated Carbon Composite Step Lap Repair Through Static and Fatigue Compression Loading." In Fracture Failure Analysis of Fiber Reinforced Polymer Matrix Composites. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-0642-7_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hachi, B. K., S. Rechak, M. Haboussi, M. Taghite, Y. Belkacemi, and G. Maurice. "Analysis of Elliptical Cracks in Static and in Fatigue by Hybridization of Green's Functions." In Damage and Fracture Mechanics. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-2669-9_40.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Jung, Dal Woo, and Nak Sam Choi. "Static and Fatigue Analysis of a Hybrid Joint Part for the Tilting Car Body." In Key Engineering Materials. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.2860.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Naresh, R., V. B. S. Rajendra Prasad, and G. Venkata Rao. "Static and Fatigue Analysis of Leaf Spring with EPDM Rubber Sandwiched Between the Steel Leaves." In Learning and Analytics in Intelligent Systems. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24314-2_87.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Neft, J. F., P. Schwarzer, and K. Schulte. "Influence of quasi lifetime treatments on the static and fatigue durability of continuous glass fiber-reinforced polypropylene." In Recent Developments in Durability Analysis of Composite Systems. CRC Press, 2021. http://dx.doi.org/10.1201/9781003211181-15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Barfusz, Oliver, Felix Hötte, Stefanie Reese, and Matthias Haupt. "Pseudo-transient 3D Conjugate Heat Transfer Simulation and Lifetime Prediction of a Rocket Combustion Chamber." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_17.

Full text
Abstract:
Abstract Rocket engine nozzle structures typically fail after a few engine cycles due to the extreme thermomechanical loading near the nozzle throat. In order to obtain an accurate lifetime prediction and to increase the lifetime, a detailed understanding of the thermomechanical behavior and the acting loads is indispensable. The first part is devoted to a thermally coupled simulation (conjugate heat transfer) of a fatigue experiment. The simulation contains a thermal FEM model of the fatigue specimen structure, RANS simulations of nine cooling channel flows and a Flamelet-based RANS simulation of the hot gas flow. A pseudo-transient, implicit Dirichlet–Neumann scheme is utilized for the partitioned coupling. A comparison with the experiment shows a good agreement between the nodal temperatures and their corresponding thermocouple measurements. The second part consists of the lifetime prediction of the fatigue experiment utilizing a sequentially coupled thermomechanical analysis scheme. First, a transient thermal analysis is carried out to obtain the temperature field within the fatigue specimen. Afterwards, the computed temperature serves as input for a series of quasi-static mechanical analyses, in which a viscoplastic damage model is utilized. The evolution and progression of the damage variable within the regions of interest are thoroughly discussed. A comparison between simulation and experiment shows that the results are in good agreement. The crucial failure mode (doghouse effect) is captured very well.
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Static and Fatigue analysis"

1

Herman, Mélanie, Christian Hochard, Jean-Marc Besson, Jean-Paul Charles, Nassira Boulebbad-Gomez, and Noël Lahellec. "Development of Techniques for Composite Parts Failure Analysis in Static and Fatigue Mode - Application on Thermoset and Thermoplastic Materials for Rotorcraft Main Rotor Hub Analysis." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12887.

Full text
Abstract:
A model defined at the ply scale to predict the failure of laminated composites for static or fatigue loading is proposed. The model describes the loss of strength in the fiber direction for a significant level of transverse damage. This meso-scale model has been characterized on woven ply laminates used for rotorcraft dynamic components, such as glass/epoxy of Starflex®, carbon fiber/epoxy, and carbon fiber/PEEK of H160 main rotor hub. Failure behavior prediction at coupon level has been validated regarding static and fatigue failure mode in tension for epoxy resin woven ply laminates. Characterizations have been also provided for PEEK resin in balanced woven ply laminate, regarding static or fatigue failure mode. Those activities are crucial to increase the level of confidence in failure model, to rely on virtual testing at coupons level, and to better predict damage and failure at component level. This work intends to support the building block approach during development and certification of such critical applications for rotorcraft.
APA, Harvard, Vancouver, ISO, and other styles
2

Serate, Duane, Chris Semaka, Kevin Suen, and Jeff Liu. "Oil Sands Haul Truck CAT 797 Frame Cracking Finite Element Analysis (FEA)." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-12704.

Full text
Abstract:
Abstract A study was performed to understand the mechanism of frame cracking on the mining haul trucks in an oilsands' operating site. A static finite element analysis (FEA) was completed to identify the high stress areas prone to cracking, and recommendations for extending the service life were attained through Fatigue Analysis and Brittle Fracture Assessment. In order to perform this FEA, an accurate 3-dimensional (3D) solid model of the truck frame was built by completing a laser scan of the entire truck frame surfaces. External static loads were applied to this generated 3D solid model for each load case to determine the stresses within the frame. Each load case was then examined to determine its contribution to the total fatigue life consumption, and also determine the critical crack dimensions to prevent brittle fracture. The static FEA results identified opportunities to optimize existing maintenance, inspection, and operating practices. Recommendations are made regarding inspection, repair, and operation of haul trucks based on the ambient temperature, crack depth and length.
APA, Harvard, Vancouver, ISO, and other styles
3

Lua, Jim, Anisur Rahman, Dinh Pham, and Nam Phan. "A Progressive Damage Model for Fatigue Analysis of Woven Fabric Composites." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12889.

Full text
Abstract:
An efficient two-step progressive damage model has been developed to predict the accumulated damage and fatigue life of woven fabric composite materials. A stress-based failure criterion coupled with a continuum damage approach is employed to predict the damage in fabric materials when loaded up to the desired stress level. Upon fatigue cyclic loading, fatigue damage initiation and propagation in the warp and weft tows, in the matrix constituent and their interfaces are evaluated with S-N based accumulation models characterizing the cycle-dependent strengths in the fiber tows and the matrix subject to tension, compression and shear loading. Nonlinear shear behavior of the matrix is characterized by a curve-fit nonlinear shear model from the static coupon test data of (+45/-45) plain weave. The fatigue cycles of each element in the fiber tows, matrix region and their interface are computed via a Newton iteration method and a numerical procedure is performed to effectively estimate the next proceeding cycles based on the element dominated failure mode. A stiffness reduction method is applied once constituent fatigue damage is indicated in each cycle increment, and the stress field is updated accordingly for further loading cycles. The predictive capabilities of the developed fatigue model are demonstrated using tension-tension fatigue of SYNCOGLAS R420 E-glass woven fabrics and T300 5HS/914 dog-bone specimens of different layups.
APA, Harvard, Vancouver, ISO, and other styles
4

Chaperon, Paul, John Sawyer, and Rhys Jones. "Shape optimization of damage tolerant structures for static strength and fatigue life." In 8th Symposium on Multidisciplinary Analysis and Optimization. American Institute of Aeronautics and Astronautics, 2000. http://dx.doi.org/10.2514/6.2000-4781.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Yao, Yanping. "Static and Fatigue Analysis of a Single Point Mooring Jacket." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55241.

Full text
Abstract:
StruCAD*3D program is used to perform the static and fatigue analysis of a Single Point Mooring (SPM) jacket in the present paper. The static analysis is conducted for members and joints under operating, extreme, and ice conditions, respectively. Nominal stress for members and punching shear stress for critical joints are checked according to the allowable stress. Deterministic approach is used for the detailed fatigue analysis of this jacket, in which the direct wave loading and high frequency mooring force are linearly combined in one load case, while the low frequency mooring force is treated as separate load case. The fatigue damage is analyzed separately and added to obtain the total damage. In the damage calculation API-X’ curve and Airy wave theory is used and the fatigue life of critical tubular joints is evaluated by using appropriate safety factors. This paper can be a reference for the design and in-place safety assessment of jackets and platforms.
APA, Harvard, Vancouver, ISO, and other styles
6

Lu, Zhichao, Huifang Li, and Caifu Qian. "Static and Fatigue Strength Analysis of a Hyperbaric Oxygen Cabin." In 2019 International Conference on Artificial Intelligence and Advanced Manufacturing (AIAM). IEEE, 2019. http://dx.doi.org/10.1109/aiam48774.2019.00141.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Huang, Yanyan, Chenyang Wang, Yifeng Sun, and Zhikun Jin. "Classifying static muscle fatigue: an surface electromyography signal analysis approach." In 3rd International Conference on Biomedical and Intelligent Systems (IC-BIS 2024), edited by Zulqarnain Baloch and Pier Paolo Piccaluga. SPIE, 2024. http://dx.doi.org/10.1117/12.3036611.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Habib, Shahroz, Waleed Bin Yousuf, Tariq Mairaj, and Saeed Khalid. "Fatigue Crack Growth prediction on A310 aircraft wing using static analysis." In 2017 14th International Bhurban Conference on Applied Sciences and Technology (IBCAST). IEEE, 2017. http://dx.doi.org/10.1109/ibcast.2017.7868038.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Duraisivam, S., P. Suresh, A. Saravanan, and E. Jamuna. "Static, fatigue and dynamic analysis of automobile torque arm using FEM." In PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE OF GREEN CIVIL AND ENVIRONMENTAL ENGINEERING (GCEE 2021). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0072723.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Rezazadeh, Kosar, Liyun Zhu, Yong Bai, and Liang Zhang. "Fatigue Analysis of Multi-Spanning Subsea Pipeline." In ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/omae2010-20847.

Full text
Abstract:
Free-span occurs normally in pipeline at uneven seabed, dynamic seabed or pipeline crossing. The analysis of free-span, including static analysis and dynamic analysis, is an important subject in the study of pipeline integrity management. Static analysis of free span for subsea pipeline is to evaluate the stress distribution of spanning pipeline in the ultimate conditions, and qualify the stress with design codes in the engineering analysis. However, dynamic analysis of subsea spanning pipeline is much complicated due to VIV fatigue. In 2006 DNV-RP-F105 suggested a methodology of dynamic analysis for long spanning pipeline with multi-mode responses, but the fatigue analysis method for multi-modes is not detailed. In addition, the fatigue analysis of multi-spanning pipeline is not clear. The gap between the continuous two spans, and the pipe-soil interaction control the fatigue damage of the multi-spanning pipeline. In this paper, a VIV fatigue analysis method for multi-spanning pipeline is suggested based on VIV analysis. In this method, Abaqus FE model is developed first to obtain the stress distribution and the natural frequency of each vibration mode for spanning pipeline on seabed in different configurations with three multi-spans, and then the fatigue analysis of VIV is carried out for the spanning pipeline based on DNV-RP-F105. An example of fatigue analysis for a multi-spanning pipeline is presented; finally, several sensitivity analyses demonstrate the effects of key parameters on the VIV fatigue.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Static and Fatigue analysis"

1

Wang, Yong-Yi. PR-350-174511-R01 Development of Rational Ovality Limits. Pipeline Research Council International, Inc. (PRCI), 2020. http://dx.doi.org/10.55274/r0011669.

Full text
Abstract:
The present work investigated the implication of ovality on pipes under static collapse and fatigue failure limit states. The impact of key contributors to each limit state was quantified through finite element analysis. The feasibility of a uniform ovality limit was explored. Recommendations were provided on the direction and methodology of future research.
APA, Harvard, Vancouver, ISO, and other styles
2

Eberlein, Robert, and Sven Düzel. Fatigue lifetime analysis of POM gears for generalized tooth root shapes. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ms.1.

Full text
Abstract:
The current calculation methods for determining the tooth root load capacity of polymer gears (e.g., VDI 2736) are based on the same assumptions as those for steel gears. However, due to the non-linear material behavior, temperature, and rate dependency of polymers, these predictions are often inaccurate. A previous study employed rate-dependent nonlinear viscoplastic finite element (FE) modelling of polyoxymethylene (POM) to quantify material influences not considered in standard metal gear assumptions. A lifetime model was developed and validated to predict tooth root fracture based on rotational speed for a constant tooth root geometry. In this study, the existing damage model is adapted and validated to include the dependency on notch (tooth root) geometry. The extension of the model to two damage parameters allows for a geometry-independent representation of the nonlinear speed dependency of tooth root breakage. This correlative modelling approach incorporates two independent damage mechanisms inside the material which lead to tooth root breakage failure of the gear. To map these mechanisms, local material states at the crack initiation point are used as damage parameters. Calibration of the bi-parametric damage model with experimental data shows that model predictions fall within the experimental scatter. Further research is ongoing to extend the damage model regarding generalized torque loading conditions.
APA, Harvard, Vancouver, ISO, and other styles
3

Ko, Yu-Fu, and Jessica Gonzalez. Effects of Low-Cycle Fatigue Fracture of Longitudinal Reinforcing Steel Bars on the Seismic Performance of Reinforced Concrete Bridge Piers. Mineta Transportation Institute, 2024. http://dx.doi.org/10.31979/mti.2024.2328.

Full text
Abstract:
Earthquakes, which can cause tremendous local stress and strain on infrastructure, can cause reinforced concrete (RC) bridges to collapse due to the concrete cracking and fracture of the steel reinforcement rebars. The fracture of longitudinal reinforcing steel due to low-cycle fatigue is one of the main causes of failure in RC structures under earthquake loading. The purpose of this research is to include the effects of low-cycle fatigue fracture of longitudinal reinforcing steel bars on the seismic performance of reinforced concrete bridge piers. To obtain a greater understanding of low-cycle fatigue failure of steel reinforcement of RC bridge piers subjected to seismic loadings, its properties were studied by considering the slenderness ratio to observe its effects on the behaviors of the steel material. The slenderness ratio are functions of unsupported length, diameter of the circular cross section of the longitudinal reinforcing bars, and the spacing of transverse reinforcing bars. The seismic performance of RC single-column pier-supported bridges with flexural failure under near-fault ground motion were assessed with the use of damage indices. The damage indices can numerically assess the damaged state of RC bridge piers and show the gradual accumulation of damage. Four numerical models are developed with fiber-based nonlinear beam-column elements to simulate the damage accumulation on RC bridge piers under seismic loadings, considering variables such as low-cycle fatigue, tensile strain damage, global buckling of longitudinal steel bars, the cracking and spalling of cover concrete, and the bond-slip between concrete and longitudinal steel bars. Bond-slip is related to the interaction between the longitudinal steel rebars and the concrete for load bearing and coordination deformation. The four numerical models were developed with different considerations of low-cycle fatigue and bond-slip: Model 1 (without bond-slip and without fatigue), Model 2 (without bond-slip and with fatigue), Model 3 (with bond-slip and without fatigue), and Model 4 (with bond-slip and with fatigue). The models underwent nonlinear time-history analyses. The results were compared with experimental testing results. All four numerical models are optimal to assess the seismic performance of RC single-column pier-supported bridges. The proposed damage indices can reasonably reflect the damage states in accordance with the experimental results. The proposed models can reasonably predict the damage states and seismic behavior of RC bridge columns and could be available to the structural engineering community for non-linear analysis and performance assessment of RC bridge structures.
APA, Harvard, Vancouver, ISO, and other styles
4

Arumugam, Udayansankar, Mimoun Elboujdaini, Ming Gao, and Ramiro Vanoye. PR-328-133702-R02 F-S Fatigue Testing of Crack-in-Dent with Framework for Life Prediction. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011628.

Full text
Abstract:
ASME B31.8 states that "Dents that contain stress corrosion cracking or other cracks are injurious to the pipeline" and therefore, requires immediate attention by the Operators. Dent containing crack fields (colonies) are often observed in liquid pipelines. The recently completed PRCI research project MD-1N "Study of the Mechanism for Cracking in Dents in a Crude Oil Pipeline" showed evidence of a mechanism for fatigue cracking. The crack growth rate as a function of stress intensity factor was estimated using the measured spacings of fatigue striations from fracture surfaces based on the assumption that the formation of fatigue striations on a cycle-by-cycle basis. However, due to the lack of full-scale fatigue crack growth data, the success was limited. This gap prompted PRCI to launch a full-scale experimental investigation of crack growth rates of cracks in dents under cyclic pressure load in the simulated groundwater NS4 environment (PRC-328-133702, MD-1Q). The objective of the study was to determine the crack growth rate as a function of stress intensity factor, the number of cycles to failure, and the failure modes of cracks in dents. The test results would be used to evaluate the validity of cycle-by-cycle based assumption for crack growth rate estimation from the measured fatigue-striation-spacing. The investigation was also aimed at establishing a framework for remaining fatigue life prediction of cracks in dents in liquid pipelines. This framework would benefit liquid pipeline Operators to manage better the integrity of dents associated with corrosion fatigue cracking in groundwater. A total of six pipe samples containing cracks in shallow dents excavated from a retired 24-inch diameter liquid transmission pipeline were available and used for the full-scale fatigue tests. The test system developed under the project consisted of four components: (1) a computer-controlled hydraulic pressure cycling system, (2) an environment chamber containing a simulated groundwater NS4 solution mounted on the pipe in around the dent region to provide a simulated field environment condition; (3) real-time crack growth monitoring systems including direct cur-rent potential drop (DCPD), Clip gage and Strain gage; (4) data acquisition system. The cyclic pressure range used in the fatigue tests was 78 to 780 psig (72%SMYS) with R=0.1, which was based on historical operational pressure data and the Rain flow analysis. A constant frequency of 0.0526 Hz was selected for the testing to ensure the frequency requirement for corrosion fatigue is met. The remaining fatigue life of cracks-in-dents and failure modes were evaluated using the full-scale fatigue test results. Further, fatigue crack growth rates were established. Finally, a framework was developed for the life prediction of cracks in shallow dents based on the findings from six full-scale fatigue cyclic tests. This framework will assist liquid pipeline operators to estimate the remaining fatigue life for cracks in shallow dents utilizing inputs from ILI and pipeline's historical operational pressure fluctuation data and to mitigate the threat of cracks in dents in a timely manner. There is a related webinar.
APA, Harvard, Vancouver, ISO, and other styles
5

Rahbar-Rastegar, Reyhaneh, Gerald Huber, Miguel A. Montoya, Christopher Campbell, and John E. Haddock. Demonstration Project for Asphalt Performance Engineered Mixture Design Testing. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317382.

Full text
Abstract:
The asphalt industry is moving towards performance-based methods for asphalt mixture design. The Federal HighwayAdministration (FHWA) is supportive of state departments of transportations (DOT) adopting index and predictive performance tests, especially those making use of the Asphalt Mixture Performance Tester (AMPT). The FHWA is therefore encouraging state DOTs to gain experience with the requirements of the procedures and analysis tools for Balanced Mixture Design (BMD). The main objective of this study is to evaluate fatigue cracking on three INDOT mainline pavement projects that have asphalt mixtures designed by the Superpave 5 mixture design, and to better understand the fundamental engineering testing capabilities of the AMPT. A total of four Superpave 5 asphalt mixtures were collected and tested from the three projects. The viscoelastic characteristics and fatigue behavior of plant-mixed, laboratory compacted (PMLC), laboratory-mixed, laboratory compacted (LMLC), and plant-mixed, field compacted (PMFC) specimens were assessed according to the AASHTO TP-132 and AASHTO TP-133 test methods. Two AMPT machines (IPC Controls and PaveTest) were used to conduct the dynamic modulus tests, while all fatigue tests were performed using a PaveTest AMPT. The raw data were analyzed using the FlexMAT software. The dynamic modulus and cyclic fatigue test results indicate that AMPT testing can be used to effectively evaluate INDOT asphalt mixtures during the mixture design and production phases. However, to do so, detailed planning and effective training are needed to help ensure the successful completion of AMPT testing.
APA, Harvard, Vancouver, ISO, and other styles
6

Bryndum. L51854 Integrity Assessment Models-Software for Exposed and Unburied Pipelines in River Channels. Pipeline Research Council International, Inc. (PRCI), 2000. http://dx.doi.org/10.55274/r0011225.

Full text
Abstract:
This guideline and its associated software River-X present a methodology for the assessment of pipeline integrity under hydrodynamic loads and impact loads from floating or moving debris in the river. The software provides a numerical tool with a user-friendly interface for assessing the risk of pipeline failure following the principles outlined in this guideline. The River-X simulates sections of exposed pipeline including the anchoring in the embankment and plastic material behavior for 2 basically different scenarios; an exposed pipeline on/in riverbed and a free spanning pipeline. A quasi-static analysis of the pipeline exposed to the river-flow is carried out in both situations where the main outcome is maximum values of plastic strain, stress, displacement, bending moment and tension. These values are held up against an acceptance criterion. The maximum allowable impact mass of debris moving with the speed of the river current in combination with the hydrodynamic load is determined. Further, if the exposed pipeline is free spanning a fatigue analysis is performed for a given distribution of river discharge over the year. An example of the use of River-X may be found in the user guide.
APA, Harvard, Vancouver, ISO, and other styles
7

Oliver, B., T. Dahlgren, and M. Miller. NEAMS Static Analysis. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1053670.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Mohanty, S., W. K. Soppet, S. Majumdar, and K. Natesan. June 2013 Update: Status Report on Assessment of Environmentally Assisted Fatigue for LWR Extended Service Conditions. Summary of 1. Room-Temperature Fatigue Test of 316 SS Specimens and Subsequent Data Analysis for Cyclic Plasticity Constitutive Model Development. 2. Other Ongoing Experimental and Mechanistic Modeling Activities. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1110488.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sevy, R. H. Quasi-static transient analysis. Office of Scientific and Technical Information (OSTI), 1985. http://dx.doi.org/10.2172/712226.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Barry, Matthew, Eric Bush, Doug Smith, et al. Static Analysis Numerical Algorithms. Defense Technical Information Center, 2016. http://dx.doi.org/10.21236/ad1008340.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Static and Fatigue analysis' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography