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Journal articles on the topic 'LOAD DEFORMATION'

Author: Grafiati

Published: 11 September 2023

Last updated: 25 July 2025

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1

Da, Kang, Wang Yongliang, Zhong Jingjun, and Liu Zihao. "Pre-Deformation Method for Manufactured Compressor Blade Based on Load Incremental Approach." International Journal of Turbo & Jet-Engines 37, no. 3 (2020): 259–65. http://dx.doi.org/10.1515/tjj-2017-0024.

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AbstractThe blade deformation caused by aerodynamic and centrifugal loads during operating makes blade configurations different from their stationary shape. Based on the load incremental approach, a novel pre-deformation method for cold blade shape is provided in order to compensate blade deformation under running. Effect of nonlinear blade stiffness is considered by updating stiffness matrix in response to the variation of blade configuration when calculating deformations. The pre-deformation procedure is iterated till a converged cold blade shape is obtained. The proposed pre-deformation met

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2

Aleksandrov, A. S., T. V. Semenova, and N. P. Aleksandrova. "MATERIALS USED IN THE ROAD BASES: METHOD OF THE RESIDUAL DEFORMATIONS’ CALCULATION." Russian Automobile and Highway Industry Journal 16, no. 4 (2019): 456–71. http://dx.doi.org/10.26518/2071-7296-2019-4-456-471.

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Materials and methods. The authors performed the analysis of the models for calculating residual deformations accumulated by granular materials and under the influence of repeated loads. The research showed the hereditary nature of the strain granular materials’ accumulation. Therefore, the authors used integral calculus for analytical solution of the residual deformation’s dependence on the number of repeated loads and on the magnitude of the main stresses. Moreover, the authors obtained the solution in the form of logarithmic and power functions, which associated the accumulated deformation

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3

Anderson, William D., Sydney L. M. Wilson, and David W. Holdsworth. "Development of a Wireless Telemetry Sensor Device to Measure Load and Deformation in Orthopaedic Applications." Sensors 20, no. 23 (2020): 6772. http://dx.doi.org/10.3390/s20236772.

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Due to sensor size and supporting circuitry, in-vivo load and deformation measurements are currently restricted to applications within larger orthopaedic implants. The objective of this study is to repurpose a commercially available low-power, miniature, wireless, telemetric, tire-pressure sensor (FXTH87) to measure load and deformation for future use in orthopaedic and biomedical applications. The capacitive transducer membrane was modified, and compressive deformation was applied to the transducer to determine the sensor signal value and the internal resistive force. The sensor package was e

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4

Williamson, M., and A. Majumdar. "Effect of Surface Deformations on Contact Conductance." Journal of Heat Transfer 114, no. 4 (1992): 802–10. http://dx.doi.org/10.1115/1.2911886.

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This study experimentally investigates the influence of surface deformations on contact conductance when two dissimilar metals are brought into contact. Most relations between the contact conductance and the load use the surface hardness to characterize surface deformations. This inherently assumes that deformations are predominantly plastic. To check the validity of this assumption, five tests were conducted in the contact pressure range of 30 kPa to 4 MPa, with sample combinations of (I) smooth aluminum-rough stainless steel, (II) rough aluminum-smooth stainless steel, (III) rough copper-smo

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5

CELMS, A., I. TREVOHO, V. CELMINA, and M. BRINKMANIS-BRIMANIS. "Technologies of building deformation monitoring in Latvia." Modern achievements of geodesic science and industry 2, no. 44 (2022): 53–59. http://dx.doi.org/10.33841/1819-1339-2-44-53-59.

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Determining the deformations of a building is a very important process in the construction and operation of a construction site. The main causes of deformation of structures and their foundations are sedimentation of foundation structures, weak load-bearing soil, crushed sand layers, wear and degradation of building foundations, uneven or excessive loading of foundations, poor condition of pile foundations, regular ambient vibrations, support of ambient temperature, various loads caused by wind, snow and other conditions, uncompact soil. The quality of building materials, binders, and aggregat

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6

Barchukova, Tetіana. "Work piles - columns with soil under constant influence of vertical and cyclically approximated horizontal loads." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 2, no. 51 (2018): 19–23. http://dx.doi.org/10.26906/znp.2018.51.1283.

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The article describes an experimental study aimed at identifying common patterns of joint work of piles - columns with soil with vertical and cyclically applied horizontal loads. The study examines the deformation processes occurring in the soil. At any pressure value, soil deformations can be divided into two groups, which are restored (elastic) and residual. When the pressure is less than the structural strength, elastic deformations appear. With a pressure of greater structural strength, elastic and residual deformations appear. Elastic deformations appear throughout the depth, residual def

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7

Wu, G., T. Chen, and G. Zhang. "Deformation characteristics of red-mud embankment under monotonic and cyclic loads." IOP Conference Series: Earth and Environmental Science 1332, no. 1 (2024): 012017. http://dx.doi.org/10.1088/1755-1315/1332/1/012017.

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Abstract The rapid growth in the production of the red mud has led to the shortage of land for stockpiling in recent years. Although red mud has been considered as the filling material for embankments, the deformation characteristics of a red-mud embankment under traffic loads has not yet been clarified. To promote its application in embankment construction, a series of centrifuge model tests of red-mud embankment under monotonic and cyclic loads were conducted. The deformation and failure processes of red-mud embankment under normal and overproof traffic loads were analyzed. The results show

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8

Xu, Pengfei, Tao Jiang, Wanqiu Li, et al. "Analyzing the Seasonal Vertical Displacement Fluctuations Using the Global Navigation Satellite System and Hydrological Load: A Case Study of the Western Yunnan Region." Water 16, no. 9 (2024): 1260. http://dx.doi.org/10.3390/w16091260.

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The non-tectonic deformation caused by hydrological loads is an important influencing factor in GNSS vertical displacement. Limited by the temporal and spatial resolution of global models and model errors, the hydrological load results calculated by traditional methods are difficult to meet the high temporal and spatial resolution requirements of small to medium-scale regions. This paper introduces the idea of the remove–restore method, assimilates regional high-resolution hydrological data, and obtains higher temporal and spatial-resolution hydrological load results. Subsequently, utilizing d

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9

Tateyama, Kohei, and Hiroyuki Yamada. "Nonuniform Deformation of Cell Structures Owing to Plastic Stress Wave Propagation." Applied Mechanics 2, no. 4 (2021): 911–31. http://dx.doi.org/10.3390/applmech2040053.

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In cell structures, unlike in dense bodies, nonuniform deformation occurs from the impact end, even at velocities in the order of tens to hundreds of meters per second. In this study, we experimentally examine the nonuniform deformation mechanism of cell structures. They prepared two kinds of specimens: nickel foam (Ni foam) and silicone-rubber-filled nickel foam (Ni/silicone foam). As a dynamic and impact test method (compression velocity of 20 m/s or more), we used a dynamic and impact load-measuring apparatus with opposite load cells to evaluate the loads on both ends of the specimen in one

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10

Aleksandrov, A. S., T. V. Semenova, and N. P. Aleksandrova. "Calculation of Residual Deformations of Granulated Materials from Exposure to Repeated Loads." Materials Science Forum 992 (May 2020): 828–35. http://dx.doi.org/10.4028/www.scientific.net/msf.992.828.

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The analysis of the models for calculating residual deformations accumulated by granular materials under the influence of repeated loads is performed. Determined the hereditary nature of the accumulation of deformation of granular materials. This allowed the use of integral calculus for the analytical solution of the problem of the dependence of residual deformation on the number of repeated loads, the value of the main stresses. The solution is obtained in the form of logarithmic and power-law functions that associate the accumulated deformation with the deformation arising from the first loa

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11

Yu, Zexing, Xiaofei Ma, Jialong Zhu, et al. "A Deformation Reconstruction Strategy for Integrated Truss Structures Subjected to Thermal–Mechanical Load." Sensors 25, no. 2 (2025): 558. https://doi.org/10.3390/s25020558.

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The deformation monitoring of integrated truss structures (ITSs) is essential for ensuring the reliable performance of mounted equipment in complex space environments. Reconstruction methods based on local strain information have been proven effective, yet the identification faces significant challenges due to variable thermal–mechanical loads, interactions among structural components, and special boundary conditions. This paper proposes a deformation reconstruction strategy tailored for ITSs under combined thermal–mechanical load scenarios wherein deformations of both the primary truss struct

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12

Kondrashin, K. G., R. A. Petrov, and N. A. Raktovich. "Accumulation of irreversible deformation of soils as a result of repeated loading." Herald of Dagestan State Technical University. Technical Sciences 49, no. 2 (2022): 143–49. http://dx.doi.org/10.21822/2073-6185-2022-49-2-143-149.

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Objective. The purpose of the study is to establish the patterns of accumulation of irreversible soil deformations from repeated loading.Method. When loading soils, the balance between external and internal forces is established gradually over a more or less long time. Therefore, with a single application of a cyclic load, such an equilibrium can be achieved only in a relatively long time.Result. An approximate method is proposed for calculating the magnitude of the deformation developed as a result of the action of a cyclic load. The cases are determined when it is necessary to take into acco

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13

Todic, M., V. Golubović-Bugarski, M. Merdanić, and T. Latinović. "Deformation state of the load-bearing structure of a four-column the press." Journal of Physics: Conference Series 2540, no. 1 (2023): 012030. http://dx.doi.org/10.1088/1742-6596/2540/1/012030.

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Abstract During the operation of each machine, the deformation and stress state of its supporting structure is directly related to the load. The load intensity ranges from the minimum to the maximum value and is a function of nominal force, torque, and kinematic-dynamic values of moving and executive assemblies during the machine operation process. The intensity of deformations is also a function of the shape and type of the supporting structure. However, although the supporting structure is reliable, which refers to its integrity, the production of a quality workpiece (product) does not have

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14

Hao, Liangjun, Weili Gong, Manchao He, Yanqi Song, and Jiong Wang. "Dynamic Model and Mechanical Properties of the Two Parallel-Connected CRLD Bolts Verified with the Impact Tensile Test." Mathematical Problems in Engineering 2018 (October 4, 2018): 1–17. http://dx.doi.org/10.1155/2018/1423613.

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Dynamic model was theoretically established for the two parallel-connected constant-resistance-large-deformation (CRLD) bolts, and the theoretical results were experimentally verified with impact tensile tests on the CRLD bolts samples. The dynamic responses of the double CRLD bolts were investigated under the impact loads with different intensities. The theoretical analyses showed that (1) under relatively small loading the CRLD bolts deform elastically and the deformation finally returns to zero and (2) under the high impact load, including the stable impact load and unstable impact load, th

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15

Ruan, Jiang Tao, Shi Bin Wang, Jing Wei Tong, Min Shen, Francesco Aymerich, and Pierluigi Priolo. "Deformation in Impacted Stitched Composite Plates Subjected to Compressive Load." Advanced Materials Research 393-395 (November 2011): 36–39. http://dx.doi.org/10.4028/www.scientific.net/amr.393-395.36.

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The study on deformation in impact-damaged graphite-fibre/epoxy stitched composite plates subjected to compressive load is presented. A delaminated cross-ply laminate [03/903]S obtained in low-velocity impact test has been examined using a self-designed anti-buckling device in compressive experiment. The out-of-plane displacement field of the specimen has been measured with an optical whole-filed measurement technique, which is carrier electronic speckle pattern interferometry (carrier-ESPI). Finite element (FE) simulation is also carried out to predict the deformation. The effect of the stitc

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16

Kim, Min-Geun, Bonyong Koo, You-Sung Han, and Minho Yoon. "Asymmetric Design Sensitivity and Isogeometric Shape Optimization Subject to Deformation-Dependent Loads." Symmetry 13, no. 12 (2021): 2373. http://dx.doi.org/10.3390/sym13122373.

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We present a design sensitivity analysis and isogeometric shape optimization with path-dependent loads belonging to non-conservative loads under the assumption of elastic bodies. Path-dependent loads are sometimes expressed as the follower forces, and these loads have characteristics that depend not only on the design area of the structure but also on the deformation. When such a deformation-dependent load is considered, an asymmetric load stiffness matrix (tangential operator) in the response region appears. In this paper, the load stiffness matrix is derived by linearizing the non-linear non

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17

Yang, J., and K. Komvopoulos. "A Mechanics Approach to Static Friction of Elastic–Plastic Fractal Surfaces." Journal of Tribology 127, no. 2 (2005): 315–24. http://dx.doi.org/10.1115/1.1828080.

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A contact mechanics theory of static friction is presented for isotropic rough surfaces exhibiting fractal behavior. The analysis is based on a piecewise power-law size distribution and a normal slope distribution of the asperity contacts and elastic–fully plastic deformation models. Numerical integration yields solutions for the normal and friction forces in terms of fractal parameters, elastic–plastic material properties, and interfacial shear strength. The variation of the static coefficient of friction with normal load is related to the effect of the surface topography on the dominant defo

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18

Ma, X. G., and K. Komvopoulos. "Pseudoelasticity and Shape Memory Effects on Deformation Recovery of Indented Titanium-Nickel Alloy Films." Nanoscience and Nanotechnology Letters 11, no. 9 (2019): 1313–17. http://dx.doi.org/10.1166/nnl.2019.3000.

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The deformation behavior of shape-memory titanium-nickel (TiNi) alloy films indented by diamond tips of various nominal radius of curvature under different contact loads was investigated by nanoindentation. Pseudoelasticity and shape-memory effect (SME) strongly affected the deformation recovery of the indented films. The effects of tip radius and maximum indentation load on the deformation recovery of austenitic and martensitic TiNi films are interpreted in terms of associated deformation mechanisms controlled by pseudoelasticity, SME, and dislocations. The results reveal the important roles

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19

Sayed, Ahmed M. "Numerical Analysis of Single-Angle Steel Member Under Tension Force with Different End Deformations." Civil Engineering Journal 6, no. 8 (2020): 1520–33. http://dx.doi.org/10.28991/cej-2020-03091564.

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Steel members with a single-angle cross-section are widely used, but some of their behaviours under loads are not considered by design codes, necessitating related research. This study is carried out on fifty steel single-angle members focused on the stress distribution behaviour and the ultimate axial load capacities under different end deformations through 3-dimensional Finite Element (FE) simulations and comparison with previous experimental findings. FE modeling is capable of modeling steel structures with high accuracy. Based on the results, the length of the angle affects neither the sha

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20

SELYAEV, Vladimir P., Nikolay N. KISELEV, and Oleg V. LIYASKIN. "DIAGRAMS OF VACUUM INSULATING PANEL DEFORMATION DURING COMPRESSION." Urban construction and architecture 9, no. 3 (2019): 17–21. http://dx.doi.org/10.17673/vestnik.2019.03.3.

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The possibility of using vacuum insulation panels (VIP) with a granular filler for the manufacture of threelayer enclosing wall panels, floor slabs and coatings is considered. The results of experimental studies of vacuum insulation panels, carried out with the aim of analytically describing the deformation diagrams of VIP panels under the action of a compressive load, are presented. It has been established: deformative properties of vacuum insulation panels with granular filler do not depend on the size of the filler particles, but depend on the volume content of the filler; a deformation dia

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21

MOHAMMED, ASHIRU, Yusuf Dada Amartey, ABDULFATAI ADINOYI Murana, and Adamu Lawan. "EVALUATING THE INFLUENCE OF TRAIN AXLE LOAD ON RAILWAY BALLAST DEGRADATION AND AXIAL DEFORMATION." FUDMA JOURNAL OF SCIENCES 6, no. 1 (2022): 210–15. http://dx.doi.org/10.33003/fjs-2022-0601-871.

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Degradation and axial deformations of railway ballast bed are highly influenced by stresses induced by moving trains. Hence, this study evaluate the influence of train axle load on the rate of degradation and axial deformation of railway ballast bed. Series of cyclic loading test were conducted at intervals of 200,000 load cycles up to 1,000,000 cycles. Two trains with capacities of 30 ton and 24 tons for freight and passengers respectively were simulated at a typical moving speed of 120 km/hr which is equivalent to a frequency of 16.5 Hz. It was observed that with an increase in both axle loa

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22

Yujra Rivas, Eddy, Alexander Vyacheslavov, Kirill V. Gogolinskiy, Kseniia Sapozhnikova, and Roald Taymanov. "Deformation Monitoring Systems for Hydroturbine Head-Cover Fastening Bolts in Hydroelectric Power Plants." Sensors 25, no. 8 (2025): 2548. https://doi.org/10.3390/s25082548.

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This study investigates the reliability of Francis turbines and highlights the critical need for an improved deformation monitoring system for bolts that fasten a hydroturbine head-cover to its casing. During different operational stages of the hydraulic unit, such as start-up, partial load, and full load, the hydroturbine head-cover and its fastening bolts are subjected to static and cyclic loads. The loads generate vibrations and different deformations that must be monitored. Although various measuring instruments, such as vibration sensors and accelerometers, have been developed to monitor

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23

Hasap, Anat, Phanasindh Paitekul, Nitikorn Noraphaiphipaksa, and Chaosuan Kanchanomai. "Influence of toe load on the fatigue resistance of elastic rail clips." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 4 (2017): 1078–87. http://dx.doi.org/10.1177/0954409717707834.

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As a critical component of the fastening system, the elastic rail clip maintains the rail in the vertical, lateral, and longitudinal positions using its specified toe load. In this study, the influence of toe load on the deformation and fatigue resistance of the clip was studied. Finite element analysis, static load experiments, and fatigue experiments were performed to evaluate the deformation and fatigue resistance of the clip. With the contribution of the lateral wheel load, the deformation range of the outer clip was higher than that of the inner clip. Therefore, the cyclic deformation of

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24

Wang, Weimin, Zheng Yang, Chen Guo, Chunting Lu, and Shengzhao Cheng. "Deformation Analysis and Optimization of Steel-Tube-Columns Combined-with-Bailey-Beams Doorway Support." Buildings 13, no. 10 (2023): 2541. http://dx.doi.org/10.3390/buildings13102541.

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As a commonly used support system in highway bridge construction, the deformation of steel-tube-columns-combined-with-Bailey-beams doorway supports is often an indicator for safety and quality control. In this paper, through finite element simulation and theoretical derivation, the main form of deformation of each part of the combined doorway is analyzed, by using the rigid body function of ANSYS. The study shows that when bearing vertical load, the deformation of the combined doorway is mainly caused by the deflection of the Bailey beams; when bearing transverse horizontal load, the deformati

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Mishra, Debakanta, Huseyin Boler, Erol Tutumluer, Wenting Hou, and James P. Hyslip. "Deformation and Dynamic Load Amplification Trends at Railroad Bridge Approaches." Transportation Research Record: Journal of the Transportation Research Board 2607, no. 1 (2017): 43–53. http://dx.doi.org/10.3141/2607-07.

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Railroad track transitions such as bridge approaches may experience differential movements due to variations in track stiffness; impact loads due to train speed and excessive vibration; ballast settlement from fouling, degradation, or both; tie–ballast contact condition and gap; and settlement of fill, subgrade, and foundation layers. A research study completed recently at the University of Illinois focused on identifying the major causes of this differential movement and implementing suitable rehabilitation measures to mitigate recurrent problems with settlement and geometry. Transient and pe

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26

Lyu, Yongtao, Tingxiang Gong, Tao He, Hao Wang, Michael Zhuravkov, and Yang Xia. "Study on the Energy Absorption Performance of Triply Periodic Minimal Surface (TPMS) Structures at Different Load-Bearing Angles." Biomimetics 9, no. 7 (2024): 392. http://dx.doi.org/10.3390/biomimetics9070392.

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As engineering demands for structural energy absorption intensify, triply periodic minimal surface (TPMS) structures, known for their light weight and exceptional energy absorption, are increasingly valued in aerospace, automotive, and shipping engineering. In this study, the energy absorption performance of three typical TPMS structures was evaluated (i.e., Gyroid, Diamond, and IWP) using quasi-static compression tests at various load-bearing angles. The results showed that while there is little influence of load-bearing angles on the energy absorption performance of Gyroid structures, its en

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Qu, Wei Qiang, and Xu Chen. "Ratcheting Behavior of Pressurized Elbow Pipe under Different Loading Modes." Applied Mechanics and Materials 853 (September 2016): 322–27. http://dx.doi.org/10.4028/www.scientific.net/amm.853.322.

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Ratcheting deformation is studied on elbow pipe made of Z2CND18.12N by FEM software. The simulation is conducted by ANSYS. Chen-Jiao-Kim (CJK) kinematic hardening model is added in ANSYS for the study. The elbow pipe is subjected to internal pressure and reversed in-plane bending. Internal pressure can be constant or cyclic. Many different loading paths are used in the study. Ratcheting deformations of under different ways are studied. The result shows that ratcheting deformation occurs mainly in the circumferential direction. Ratcheting deformation at the crown and intrados of elbow pipe is m

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Sahoo, Vineet, and Rathindranath Maiti. "Static load sharing by tooth pairs in contact in internal involute spur gearing with thin rimmed pinion." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 4 (2016): 485–99. http://dx.doi.org/10.1177/0954406215618424.

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Involute toothed internal−external standard gear sets are modeled for load-sharing by the teeth pairs in mesh along the line of contact. An analytical solution is proposed. Considering the rigid body in rotation, it is assumed that angular rotation of a gear with respect to the other gear due to deformation along the line of contact is equal. The sum of the normal loads in all tooth pairs in contacts, which equals to the total transmitted load, is considered constant. All possible deformations such as, tooth bending deflection, tooth compressive (contact) deformation, tooth foundation deflecti

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29

Mill, Tarvo, Artu Ellmann, Martti Kiisa, et al. "Geodetic monitoring of bridge deformations occurring during static load testing." BALTIC JOURNAL OF ROAD AND BRIDGE ENGINEERING 10, no. 1 (2015): 17–27. http://dx.doi.org/10.3846/bjrbe.2015.03.

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Terrestrial laser scanning technology has developed rapidly in recent years and has been used in various applications but mainly in the surveying of different buildings and historical monuments. The use for terrestrial laser scanning data for deformation monitoring has earlier been tested although conventional surveying technologies are still more preferred. Since terrestrial laser scanners are capable of acquiring a large amount of highly detailed geometrical data from a surface it is of interest to study the metrological advantages of the terrestrial laser scanning technology for deformation

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Li, Xiaofeng, and Zhixiang Yin. "Study of Creep Mechanical Properties and a Rheological Model of Sandstone under Disturbance Loads." Processes 9, no. 8 (2021): 1291. http://dx.doi.org/10.3390/pr9081291.

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The stress environments of rock masses are complex. To explore the mechanical properties of sandstone under earthquake or disturbance loads, laboratory triaxial creep tests under different disturbance loads were conducted on sandstone from Fuxin, Liaoning Province, China. Given the disturbance load, a creep deformation pattern for sandstone was analyzed, and the influence of the disturbance load on the mechanical properties of rock was considered. Thus, a constitutive model of rock under creep disturbance load was established. The results show that (1) the creep curve can be divided into four

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31

Kelly, J. M. "Shear Deformation and Buckling of Columns." Applied Mechanics Reviews 44, no. 11S (1991): S160—S165. http://dx.doi.org/10.1115/1.3121348.

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It is shown that the prediction of buckling loads of columns that are very weak in shear is crucially dependent on the choice of direction for the axial load of the column in the buckled configuration. Examples are given showing the wide differences in buckling load predicted by different choices. The results are applicable to columns of sandwich construction, springs, and multilayer elastomeric bearings for isolation systems.

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Wu, Y. Q., Han Huang, and Jin Zou. "Deformation of Monocrystalline Silicon under Nanoscratching." Advanced Materials Research 41-42 (April 2008): 15–19. http://dx.doi.org/10.4028/www.scientific.net/amr.41-42.15.

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In this work, deformation of monocrystalline silicon (Si) under nanoscratching was investigated using transmission electron microscopy (TEM). The results indicated that no fracture occurred during nanoscratching with loads ranging from 1 to 6 mN. The damaged regions induced by nanoscratching included an amorphous Si region and a damaged crystalline Si region. Detailed TEM analyses revealed that at the lowest load of 1 mN no dislocation was observed in the damaged crystalline region, and only stacking faults were observed at the boundary between the damaged crystalline Si and amorphous Si. Disl

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Tani, J. "Buckling of Truncated Conical Shells Under Combined Axial Load, Pressure, and Heating." Journal of Applied Mechanics 52, no. 2 (1985): 402–8. http://dx.doi.org/10.1115/1.3169061.

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On the basis of the Donnell-type shell equations with the effect of nonlinear prebuckling deformations taken into consideration, a theoretical analysis is performed on the buckling of clamped truncated conical shells under two loads combined out of uniform pressure, axial load, and uniform heating. The problem is solved by a finite difference method. It is found that the interaction curves of buckling loads are changed remarkably by the difference in the shape of conical shells. This is due to the large nonlinear prebuckling deformation and the difference in the buckling mode between two cases

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Wu, Ji, Shu Lin Duan, Zhan Hua Wu, Hui Xing, and Qin An Liu. "The Coupled Thermal and Mechanical Load Analysis in the 6S50MC-C Type Marine Diesel' Piston." Advanced Materials Research 690-693 (May 2013): 1909–13. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.1909.

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MAN Diesel’s 6S50MC-C two-stroke marine diesel engine is researched in this paper. The intensity under the effect of thermal load, mechanical load and coupled loads are analyzed. As the boundary conditions of the temperature field distribution, the mean temperature and the mean heat transfer coefficient are calculated firstly. Based on the temperature field, the thermal intensity is obtained in ANSYS. Then the study analyzes the stress and the strain distribution when the mechanical load and the coupled loads are applied. Through the analysis of different loads, the maximum stress is 696MPa in

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35

Zhao, Enkang, and Xinhao Yuan. "Deformation control and weight optimization of civil aircraft nose structures." Journal of Physics: Conference Series 2820, no. 1 (2024): 012002. http://dx.doi.org/10.1088/1742-6596/2820/1/012002.

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Abstract The airtight load is one of the main loads on civil aircraft fuselage, and the fuselage cross-section will tend to deform in a positive circle under the effect of the airtight load. Deformation varies for structures with different contour curvatures for the same airtight load and structural stiffness, especially in the contraction section of the fuselage. Therefore, the deformation of the structure can be controlled by optimizing the contour curvature without increasing the structure stiffness, resulting in a lighter overall weight for the same deformation, thus achieving weight reduc

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Pertseva, Olga N., Gleb V. Martynov, Daria E. Monastyreva, Ekaterina I. Pereladova, Zaur S. Daurov, and Roman S. Tikhonov. "The sustainability of micropolar concrete plasticity model to the finite element size." Vestnik MGSU, no. 5 (May 2019): 559–69. http://dx.doi.org/10.22227/1997-0935.2019.5.559-569.

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Introduction. As it is known, deformation of concrete can be divided into several stages. The first stage is characterized by a linear dependence of deformations and stresses, elastic deformations and small loads that, as they increase, lead to the second stage. At the second stage, the dependence becomes curvilinear, while deformations are irreversible, since micro-cracks are formed. Further consolidation of the micro-cracks into meso- and main cracks refers to the third stage and is accompanied by a redistribution of energy to the area of the main crack mouth. However, reaching the ultimate

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Liu, Xiaopeng, Ziang Shi, Yonglin Zhang, Hui Li, Houchang Pei, and Hongjun Yang. "Characteristics of Damage to Brown Rice Kernels under Single and Continuous Mechanical Compression Conditions." Foods 13, no. 7 (2024): 1069. http://dx.doi.org/10.3390/foods13071069.

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During the rice milling process, single and continuous compression occurs between brown rice and the processing parts. When the external load exceeds the yield limit of brown rice, brown rice kernels are damaged; with an increase in compression deformation or the extent of compression, the amount of damage to the kernels expands and accumulates, ultimately leading to the fracture and breakage of kernels. In order to investigate the mechanical compression damage characteristics of brown rice kernels under real-world working conditions, this study constructs an elastic–plastic compression model

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Pyles, Marvin R., and Joan Stoupa. "Load-Carrying Capacity of Second-Growth Douglas-Fir Stump Anchors." Western Journal of Applied Forestry 2, no. 3 (1987): 77–80. http://dx.doi.org/10.1093/wjaf/2.3.77.

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Abstract In order to quantify the stump anchor capacity of small second-growth Douglas-fir (Pseudotsuga menziesii [Mirb]. Franco) trees, load tests to failure were conducted on 18 stumps from trees 7 to 16.5 in dbh. The tests produced ultimate loads that varied as the square of the tree diameter. However, the ultimate load typically occurred at stump system deformations that were far in excess of that which would be considered failure of a stump anchor. A hyperbolic equation was used to describe the load-deformation behavior of each stump tested and was generalized to describe all the test res

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Cederbaum, G., and R. A. Heller. "Dynamic Deformation of Orthotropic Cylinders." Journal of Pressure Vessel Technology 111, no. 2 (1989): 97–101. http://dx.doi.org/10.1115/1.3265664.

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The theory of thick orthotropic shells is used here to analyze a cylinder subjected to dynamic loads. The formulation includes shear deformation and rotatory inertia effects similarly to the first-order, shear deformation, laminated plate theory. Dynamic line loads (along the longitudinal direction) and patch loads are considered. The time-dependent part of the load is a step pulse or a half-sine wave.

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Sapieta, Milan, Vladimír Dekýš, Ondrej Štalmach, Alžbeta Sapietová, and Martin Svoboda. "Detection of Elastic Deformation in Metal Materials in Infrared Spectral Range." Materials 14, no. 18 (2021): 5359. http://dx.doi.org/10.3390/ma14185359.

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The aim of this work is to verify the presence of deformation in the metal specimen from the material AISI 316L by means of lock-in thermography. The specimen was cyclically loaded by the three-point bending in the fatigue testing machine. A response of the specimen to such excitation can be detected in the infrared spectrum and to determine temperature changes during a loading cycle. By means of the lock-in method, an increased signal to noise ratio (radiation energy detected by an infrared camera) was achieved. Besides, the temperature changes were determined on the basis of amplitudes of ra

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Bacha, Sher, Bingxiang Huang, and Haoze Li. "Long-term creep and microscopic deformation mechanisms of sandstone using rock rheology creep equipment and scanning through high-resolution 3D XRM." Journal of Geophysics and Engineering 19, no. 2 (2022): 227–44. http://dx.doi.org/10.1093/jge/gxac004.

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Abstract Since rock is heterogeneous, hence its behavior is always variable. The governing parameters in rock deformations are time, applied load, composition, water content, temperature and loading conditions including confinement and loading rate. Time-dependent deformation study is extremely important for the prevention of hazards such as rockburst, roof fall and collapse. In the current study, sandstone samples from Kouzidong Mine China are analyzed using long-term rheological creep tests and advanced microscopic scanning using 3D X-ray microscopy (XRM). Time is the main governing factor i

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Zhang, Lixin, Lijun Chen, Jianxun Chen, et al. "Load Calculation Method for Deep-Buried Layered Soft Rock Tunnel Based on Back-Analysis of Structural Deformation." Symmetry 16, no. 4 (2024): 383. http://dx.doi.org/10.3390/sym16040383.

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After the excavation and unloading of deep-buried soft rock tunnels, support structures often experience deformation-related disasters such as concrete cracking, steel frame bending and twisting, and primary support instability under different forms of load. Accurately calculating the load borne by the primary support structure is the key to ensuring design rationality and construction safety. Especially in layered soft surrounding rock formations, the magnitude and distribution of the loads are different from those of conventional rock and soil masses, resulting in limited applicability of ex

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Wang, Xiufei, Kun Liu, Mingcai Xu, and Hewei Liu. "Plastic Response and Failure of the Cruciform Structure under In-Plane Load." Journal of Marine Science and Engineering 11, no. 7 (2023): 1478. http://dx.doi.org/10.3390/jmse11071478.

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In this study, a common cruciform structure in ship hulls was designed and experimented with in order to analyze its deformation characteristics under planar collision and quasi-static loading. The mechanical parameters of the materials were determined by performing tensile tests on the plates used in the specimens. The applicability of the EPS, BWH, and RTCL failure criteria in the simulation of compressive structures was investigated by finite element simulation of quasi-static tests and falling weight impact tests. The effects of mesh size on the deformation and impact force of the crucifor

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Aleksandrov, Anatoliy Sergeevich, Tatiana Victorovna Semenova, and Nataliya Pavlovna Aleksandrova. "Analiza odkształceń trwałych warstw z kruszywa w konstrukcji nawierzchni drogowej." Roads and Bridges - Drogi i Mosty 15, no. 4 (2016): 271–84. http://dx.doi.org/10.7409/rabdim.016.017.

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Models of permanent deformation in soils and granular materials are analysed in the article. Power, logarithmic and exponential functions that connect permanent deformation with the deformation caused by the first loading or with the one accumulated as a result of a certain number of load applications are found to be most often used. Due to the application of a hereditary creep theory some generalizing models for the analysis of permanent deformations under cyclic loading were obtained. As a result, a new method based on the integration of power functions describing the increment of permanent

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Bai, Zhengwei, and Eryu Zhu. "Multi-Objective Optimisation and Deformation Analysis of Double-System Composite Guideway Based on NSGA-II." Buildings 14, no. 10 (2024): 3115. http://dx.doi.org/10.3390/buildings14103115.

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To study the optimal design of the section of the double-system composite guideway under the economic, steel consumption, and carbon emission characteristics, this paper introduced the multi-objective constrained optimisation model, which was established by the non-dominated sorting genetic algorithm II. In addition, the finite element model was established to further analyse the optimised section’s deformation and summarise the rail girder’s deformation law under different loads. The results showed that compared with the original design scheme, the optimised scheme can effectively reduce carb

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Hu, Shao Qing, and Bai Tao Sun. "Finite Element Analysis of Air Cooler Using Equivalent Static Method and Response Spectrum Method Respectively." Advanced Materials Research 250-253 (May 2011): 2955–58. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.2955.

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Based on the characteristic of cooler frame, the finite element model of air cooler frame is established using ANSYS software. Equivalent static load method and response spectrum method were used for the seismic performance analysis of cooler frame. The equivalent static load is applied at the center of gravity of various masses using MPC184 rigid beam for transferring the load. The deformation and stress of cooler using equivalent static load method are larger than that of cooler using spectrum response method. For this reason, it can be said that the equivalent static load method is more con

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Kang, Ting Ting. "Second-Order Effects of Shanxi Tall Steel Framework Sway." Applied Mechanics and Materials 275-277 (January 2013): 1096–99. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1096.

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Structure in horizontal wind load produce lateral displacement, vertical load may have caused additional effects due to the lateral displacement and deformation of the cumulative increase leads to structural instability collapse. Due to the characteristics and problems of the structure, utilizing SAP2OOO finite element software, this paper consider the deformation of the lateral displacement of the second-order effects under wind loads and loads of the Shanxi Taiyuan Xiaodian a tall steel frame structure.

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Long, Lin, Zhida Li, and Yunyu Li. "Investigation of an Empirical Creep Constitutive Model of Changsha Red Loam." Buildings 13, no. 4 (2023): 1064. http://dx.doi.org/10.3390/buildings13041064.

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To describe and predict the creep deformation of Changsha red loam (including sandy soil and silty clay) in China, an empirical creep model was proposed based on a laboratory consolidation compression test. Two classical soil layers were sampled from the deep foundation pit site and fourteen samples were designed for tests under different loading conditions. Results show that the deformation process illustrates deceleration and stabilization creep with its vertical load lower than 500 kPa, while it may illustrate acceleration with its vertical load higher than 500 kPa. By analyzing the experim

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Li, Zhong Wei. "Numerical Simulation of Rock Bolt Deformation under Dynamic Load." Applied Mechanics and Materials 441 (December 2013): 443–47. http://dx.doi.org/10.4028/www.scientific.net/amm.441.443.

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This paper used LS-DYNA simulation software to simulate rock bolt breaking position, displacements at different locations and the plastic deformation under dynamic load. Major drew the following conclusions: plastic deformation of the bolt away from breaks 600mm is only 1/20 compared with breaks; deformation of the rock bolt increased as the distance away from dynamic load applied position reduced, rock bolt deformation under dynamic load has a local effect; rock bolt deformation under dynamic load and rock bolt deformation under static load had essentially different.

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Sokov, Valerii. "Study of influence of the auxiliary factors onto characteristics of elastic-plastic deformation in the stress concentrator of the beam-wall with broken edges." Scientific journal of the Ternopil national technical university 114, no. 2 (2024): 60–72. http://dx.doi.org/10.33108/visnyk_tntu2024.02.060.

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The thin-walled steel beam-wall with broken edges is being investigated, which is a part of many structures. The wall of this beam consists of two prismatic parts with a linear transition from a smaller to a larger wall height, together forming an angular upper edge with the edges of the prismatic parts. The lower linear edge of the wall is attached to the sheathing.The beam-wall is subjected to static and cyclic loads, under which elastic-plastic deformations strains may occur at in the stress concentrator. This leads to failure of static strength and growth of fatigue cracks. The factors inf

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