Gotowe bibliografie tematyczne / Axial loads

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Gotowa bibliografia na temat „Axial loads”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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Artykuły w czasopismach na temat "Axial loads"

Zhang, Ming, Rongmin Jiang, and Hong Nie. "Analysis of axial stiffness characteristics of a mechanism of fluid bag shock absorber under alternative factors." Journal of Vibroengineering 18, no. 2 (2016): 682–98. http://dx.doi.org/10.21595/jve.2016.16610.

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A mechanism of fluid bag shock absorber which could provide axial shock protection under small displacement and small deformation was designed. The finite element model of the mechanism was established in ABAQUS, the different types of loads imposed on the bottom of mechanism when the mechanism worked in different environment were described and the load stiffness matrix was obtained when pressure loads were imposed on the mechanism. The effects of the notch in fluid bag on axial stiffness characteristics were discussed. The results indicate that the flip of inner shell occurs as the axial conc

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Capobianco, G., N. Bohun, M. Gratton, R. Serra, A. Zinbi, and N. Rigollet. "Both radial and axial load distribution measurement on a V-band clamp by a new load cell design." Insight - Non-Destructive Testing and Condition Monitoring 64, no. 8 (2022): 432–36. http://dx.doi.org/10.1784/insi.2022.64.8.432.

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This paper presents a method for determining the axial and radial load distribution of the moment generated in a V-band clamp and is validated experimentally using finite element analysis (FEA). The method comprises a slotted flange, which is distinguished by having three different profiles for different levels of load symmetrically divided among eight sectors. Each sector is characterised and calibrated. The load cell is analysed using finite element Abaqus software to predict and corroborate the system. In the experimental test, the axial and radial loads are measured using strain gauges for

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Wang, Yan Shuang, Yan Wu, and Hai Feng Zhu. "Quasi-Static Analysis on a Large-Sized Four Contact-Point Slewing Bearing with Negative Axial Play." Applied Mechanics and Materials 307 (February 2013): 219–22. http://dx.doi.org/10.4028/www.scientific.net/amm.307.219.

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A quasi-static analysis of a large-sized four contact-point slewing bearing with negative axial play is performed. The values of normal contact loads of a slewing ring bearing between balls and inner/outer ring were computed at different negative axial plays without applied load. The results show that the normal loads of the four contact points increase as the absolute value of negative axial play increases. Slightly changing negative axial play makes big change on normal contact load. Startup friction torque can be improved largely by increasing slightly the absolute value of negative axial p

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Yu, Yang, Yi Hua Dou, Fu Xiang Zhang, and Xiang Tong Yang. "Analysis of Premium Connection of Connecting and Sealing Ability Loaded by Axial Tensile Loads." Applied Mechanics and Materials 268-270 (December 2012): 737–40. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.737.

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It is necessary to know the connecting and sealing ability of premium connection for appropriate choices of different working conditions. By finite element method, the finite element model of premium connection is established and the stresses of seal section, shoulder zone and thread surface of tubing by axial tensile loads are analyzed. The results show that shoulder zone is subject to most axial stresses at made-up state, which will make distribution of stresses on thread reasonable. With the increase of axial tensile loads, stresses of thread on both ends increase and on seal section and sh

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Majid, Aziz Abdul, Bambang Setiawan, and Niken Silmi Surjandari. "PENURUNAN FONDASI TIANG TUNGGAL PADA PEMBEBANAN LATERAL AKIBAT PENAMBAHAN BEBAN AKSIAL." Jurnal Riset Rekayasa Sipil 8, no. 2 (2025): 54. https://doi.org/10.20961/jrrs.v8i2.101616.

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The pile foundation is the lower building structure that supports the above structure. Pile foundations withstand combined loads from the vertical and horizontal directions. In the field, both loads work simultaneously. However, in Indonesia, in general, the axial and lateral loading tests are carried out separately. Related to this, there have been few investigations on the influence of combined loads on pile foundations. These led to inconsistent results to the effects of adding the axial load on the lateral loading. The three-dimensional finite element method is used in this study to analyz

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Hansapinyo, Chayanon, Suchart Limkatanyu, Hexin Zhang, and Thanongsak Imjai. "Residual Strength of Reinforced Concrete Beams under Sequential Small Impact Loads." Buildings 11, no. 11 (2021): 518. http://dx.doi.org/10.3390/buildings11110518.

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Sequential small impact loads may not collapse structures directly but could weaken the strength of structures. This study aimed to investigate the impact of these sequential small impact loads on the strength of the reinforced concrete beams. First, six sequential impact loads were applied to the test specimens. Then, the residual static capacity of the impacted specimens was determined by the ultimate static load test, compared with those of undamaged specimens. The experiment was composed of 12 specimens having identical dimensions. The variable parameters were the magnitude of the axial lo

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Cui, Hu Wei, Ping Yang, Can Shen, and Liang Zhou. "Research on Load Bearing Behavior of Ship Stiffened Plates under Cyclic Loads." Advanced Materials Research 904 (March 2014): 446–49. http://dx.doi.org/10.4028/www.scientific.net/amr.904.446.

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This paper adopts nonlinear finite element method to study the load bearing behavior of ship stiffened plates with different dimensions. The research focuses on the compressive ultimate strength, axial rigidity, and residual plastic deflection of the stiffened plates under cyclic compressive and tensile loads. The results indicate that the compressive ultimate strength and axial rigidity of stiffened plates decrease with the incremental cyclic loads significantly, meanwhile, the residual plastic deflection increases with the cyclic loads.

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Flanagan, Dennis, Justin Phillips, Matthew Connor, Timothy Dyer, and Kazem Kazerounian. "Hoop Stress and the Conical Connection." Journal of Oral Implantology 41, no. 1 (2015): 37–44. http://dx.doi.org/10.1563/aaid-joi-d-12-00180.

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Dental implant-abutment connection design has developed into the use of a conical, shank and socket connection between the implant abutment and fixture. The connection between these two elements is, in effect, a conical wedge that may exert lateral forces under load that may result in fracture of the coronal implant socket fixture walls. This study evaluated the axial loading on a conical connection and found that axial loads were well tolerated but off-axial loads were not. Fracture of the implant coronal socket fixture wall occurred under off-axial loading.

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Alhamati, Abdullah Ali Nasser, Abdul Halim Ghazali, and Jamalodin Norzaie. "Investigation on the behavior of rigid polyvinylchloride pipes subjected to uniaxial compression loads." ASEAN Journal on Science and Technology for Development 23, no. 3 (2017): 145. http://dx.doi.org/10.29037/ajstd.101.

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The objective of this research was to investigate the capability of rigid Polyvinylchloride (PVC-U) pipes to sustain axial loads. The behavior of PVC-U pipes specimens subjected to short-term uniaxial compression loads were experimentally investigated. Results of the load-displacement tests on pipes of different wall thickness, diameter, and specimen heights were recorded. The experimental test results show that the PVC-U pipes are capable of supporting loads greater than the required design load (3.4 kN). Increasing the pipe specimen height decreases the pipe strength for supporting the axial

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Wang, Dong, and Mao See Wu. "Elastic buckling analysis of an embedded infinitely long rod under combined axial and torsional loads." Mathematics and Mechanics of Solids 24, no. 12 (2019): 3779–94. http://dx.doi.org/10.1177/1081286519856062.

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In this paper, expressions for the critical axial–torsional loads are derived for the buckling of an elastic rod embedded in an elastic medium. The derivation is based on the assumption that the deforming rod encounters a response force from the surrounding medium, and a first-order perturbation analysis of the governing equilibrium equations. It is shown that a dimensionless universal buckling relationship, independent of material and geometry, exists between the critical axial load, both in compression and tension, and the critical torsional load. A reducing axial compression, or an increasi

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Rozprawy doktorskie na temat "Axial loads"

Knappett, Jonathan Adam. "Piled foundations in liquefiable soils : accounting for axial loads." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.595853.

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Lund, Julie. "Buckling of cylindrical members with respect to axial loads." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for produktutvikling og materialer, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26324.

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Managing technology and taking advantage of the opportunities to further development is essential to ensure increased hydrocarbon recovery and barrier security for upstream energy companies. Interwell is a well intervention company operating globally, with main competence in plug and straddle solutions with related setting, pulling and measurement tools. In many of Interwells product lines, cylindrical members and pipes are being exposed to axial compressive loads in both static and dynamic conditions. The purpose of this study was to increase the knowledge on how to facilitate full util

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Boggs, Thomas P. "Determination of axial load and support stiffness of continuous beams by vibration analysis." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-11102009-020304/.

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Rupp, John F. "MODELING OF STEEL-JACKETED REINFORCED CONCRETE UNDER AXIAL COMPRESSIVE LOADS." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1330615432.

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Paggett, Jon W. "Neutron diffraction study of load response and residual stresses in WC-(Ni/Co) composites." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/4109.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2005.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (May 25, 2006) Vita. Includes bibliographical references.

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Yun, Xiaoyou 1965. "Geomechanical behaviour of biaxially loaded rock." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115913.

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The stress state at the boundary of any underground mine opening is that of plane stress. This planar state of stress can be simulated in laboratory by subjecting a cubic rock specimen to a biaxial loading condition. Thus, research on the behaviour of biaxially loaded rock is important for better understanding of the stability of mining fronts such as crown pillar skin, drift face or shaft floor.<br>The objective of this research is to study the geomechanical behaviour of biaxially loaded rock. Three rock types were selected, namely limestone, granite and sandstone.<br>The laboratory work was

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Alday, John Hane. "The correlation of randomness with high tip losses in an axial flow fan stage." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-11242009-020017/.

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Lam, Sze Yue. "Effects of axial load, shielding and shape on negative skin friction on piles /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202006%20LAM.

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熊朝暉 and Zhaohui Xiong. "Reinforced concrete column behavior under cyclic loading." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31243836.

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Xiong, Zhaohui. "Reinforced concrete column behavior under cyclic loading /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B23530121.

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Książki na temat "Axial loads"

Li︠a︡tkher, V. M. Seismic loads. John Wiley & Sons, Inc., 2016.

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Danielson, D. A. Analytical tripping loads for stiffened plates. Naval Postgraduate School, 1994.

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Gur, J. Ari. Experimental studies with metal plates subjected to inplane axial impact. Technion Israel Institute of Technology, 1985.

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United States. National Aeronautics and Space Administration., ed. Axisymmetric deformations and stresses of unsymmetrically laminated composite cylinders in axial compression with thermally-induced preloading effects. Carderock Division, Naval Surface Warfare Center, 1993.

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Tennyson, Roderick C. Buckling of composite cylinders under axial compression. Elsevier, 1987.

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Tennyson, Roderick C. Buckling of imperfect sandwich cylinders under axial compression. [s.n.], 1990.

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Tom, Cordes, Lease Kevin, and Society of Automotive Engineers. Fatigue Design and Evaluation Committee., eds. Multiaxial fatigue of an induction hardened shaft. SAE, 1999.

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Cheung, E. W. Buckling of composite sandwich cylinders under axial compression. Elsevier Science Publishers, 1988.

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Cheung, Eric Waihon. Buckling of composite sandwich cylinders under axial compression. Dept. of Aerospace Science and Engineering, University of Toronto, 1988.

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Bornsteiln, A. Vibration and buckling tests of stringer-stiffened cylindrical shells subjected to non-uniform axial loading. Technion - Israel Institute of Technology, 1991.

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Części książek na temat "Axial loads"

Killmann, Martin, and Marion Merklein. "Analysis of Multiaxial Tensile Stresses in Cold Forging Tools." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58006-2_1.

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AbstractTools have a key role in cold forging as they directly influence part quality and process economics. High loads from the contact pressure exhibited by the workpiece are a major challenge regarding tool life. In complex geometries, tensile die stresses are concentrated in local areas and oriented both in axial and tangential directions. This superposition of loads leads to fatigue failure at the stress peaks. Since the interactions of multidirectional tensile stresses in cold forging tools have not been investigated in previous investigations, this paper aims to better understand the fo

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M°Kenzie, W. M. C. "Members Subject to Combined Axial and Flexural Loads." In Design of Structural Steelwork to BS 5950 and C-EC3. Macmillan Education UK, 1998. http://dx.doi.org/10.1007/978-1-349-14612-3_4.

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Li, L. "Stable Limit Axial Load Ratios of Concrete Filled Steel Tubular Beam-Columns Under Varying Axial Loads." In Lecture Notes in Civil Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8079-6_157.

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Schaeffner, Maximilian, Christopher M. Gehb, Robert Feldmann, and Tobias Melz. "Forward vs. Bayesian Inference Parameter Calibration: Two Approaches for Non-deterministic Parameter Calibration of a Beam-Column Model." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77256-7_15.

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AbstractMathematical models are commonly used to predict the dynamic behavior of mechanical structures or to synthesize controllers for active systems. Calibrating the model parameters to experimental data is crucial to achieve reliable and adequate model predictions. However, the experimental dynamic behavior is uncertain due to variations in component properties, assembly and mounting. Therefore, uncertainty in the model parameters can be considered in a non-deterministic calibration. In this paper, we compare two approaches for a non-deterministic parameter calibration, which both consider

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Kuzmickis, Vitalijs, Andrejs Kovalovs, Andris Chate, and Vladimir Kulakov. "Natural Frequencies of GFRP Beam Under Tensile Axial Loads." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-53598-7_27.

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Segerlind and Larry J. "Chapter 10 Designing for Combined Loads: Axial and Bending." In Designing Structural Components for Machines. American Society of Agricultural and Biological Engineers, 2010. http://dx.doi.org/10.13031/2013.29518.

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Siddique, S., J. Deng, and E. Mohamedelhassan. "Dynamic Stability of Elastic Beams Under Axial Arbitrary Loads." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0511-7_26.

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Zhang, Jianxun, Pengchong Zhang, Huicun Song, and Lei Zhu. "Transverse Vibration Characteristics of Clamped-Elastic Pinned Beam Under Compressive Axial Loads." In Advances in Frontier Research on Engineering Structures. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8657-4_47.

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AbstractBased on the Bernoulli–Euler theory, the vibration characteristics of a clamped-elastic pinned beam under the elastic constraint and the compressive axial loads are derived and verified by finite element method. The results of examples show that the natural frequency of the beam decreases with loads increase and the frequency increases with the increase of the elastic constraint stiffness. When the constraint stiffness increases from 104 to 108 N/m, the first-order natural frequency becomes 4.24 times, the second-order natural frequency becomes 2.19 times, and the third-order natural f

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Skoczeń, Błażej, and Jacek Skrzypek. "Inadaptation Mechanisms in Bellows Subject to Sustained Pressure and Cyclic Axial Loadings in Terms of Finite Deformations." In Inelastic Behaviour of Structures under Variable Loads. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0271-1_19.

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Prabhakar, Srijan, D. Ravi Kumar, and S. Aravindan. "Numerical and Experimental Investigation of Multi-axial Forging of AA6082 Alloy." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-58006-2_3.

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AbstractMulti-axial forging is a useful technique for producing ultrafine-grained structures in bulk materials by means of severe plastic deformation. The workpiece is subjected to a specific plastic strain in the multi-axial forging process by repeatedly upsetting along all three axes by rotating the sample by 90° between the two passes; this leads to the accumulation of a large plastic strain in the material. The shape of the product does not change, as equal compressive strain is applied in all directions. Severe plastic deformation methods such as multi-axial forging can be used for produc

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Streszczenia konferencji na temat "Axial loads"

Richards, Marvin. "Predicted Performance of an Optimized Energy-Absorbing Crashworthy Seat During Idealized and Actual Crash Pulses." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9481.

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Advanced computer simulation was utilized to optimize a generic vertical-load-limiting seat's energy absorber (EA) load-stroke profile to achieve acceptable lumbar axial compressive loads for a 50th percentile anthropomorphic test device (ATD) when exposed to standard military triangular test pulses. The optimized EA profiles included a constant-load type, a progressive-ramp-load type, and a progressive-step-load type. Measured accelerations from three full-scale rotorcraft crash tests were then input to the computer simulation to evaluate the three optimized EA profiles. The modeling showed t

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Liu, Qingsheng, Zhongyuan Qu, Xiaoya Liu, Jiawei He, and Gang Wang. "Axial Cyclic Behavior of Unbonded Flexible Riser Under Cyclic Axial Loads." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-123115.

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Abstract Unbonded flexible risers consist of several helical and cylindrical layers, which can undergo large bending deformation and can be installed to different configurations to adapt harsh marine environment, thus can be applied to transport oil and gas resources from Ultra Deep Waters (UDW). The special construction of the structure results the complicated cross-sectional properties and has always been the research hotspot in the field of ocean engineering, and the structural behavior under long-term marine loads is the research challenges. In this paper, different from the previous studi

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Shen, G., and W. R. Tyson. "Limit Loads for Pipelines With Axial Surface Flaws." In 1996 1st International Pipeline Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/ipc1996-1833.

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The limit loads for pipelines with axial surface flaws have been evaluated by using a strip yield model at levels of ligament yield and ligament collapse. The former was defined as that at which the plastic zone first reaches the back surface, and the later is that at which the plastic zone spreads over the entire ligament. The evaluated collapse load has been used to estimate the failure stress of pipelines containing axial surface flaws. Predictions have been compared with existing experimental data.

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Provasi, Rodrigo, Fernando Geremias Toni, and Clóvis de Arruda Martins. "Equivalent Model for Interlocked Carcass Under Axial Loads." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-54381.

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The modelling of flexible pipe interlocked carcasses is complicated when considering all the geometric complexity of their profile. A possible approach is to model them as cylindrical equivalent layers. To follow this path several alternatives can be considered in changing the geometrical and material properties. However, the thickness and the mean radius of those layers must not be changed to not interfere with the diameter of the other flexible pipe layers. In this paper, a model of an orthotropic cylindrical layer, with the same thickness and mean diameter of the original carcass layer is c

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Jin, Shan, Shuai Yuan, and Yong Bai. "Collapse of Tubes Under Combined Bending and Axial Compression Loads." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77458.

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In practical application, pipelines will inevitably experience bending and compression during manufacture, transportation and offshore installation. The mechanical behavior of tubes under combined axial compression and bending loads is investigated using experiments and finite element method in this paper. Tubes with D/t ratios in the range of 40 and 97 are adopted in the experiments. Then, the ultimate loads and the local buckling modes of tubes are studied. The commercial software ABAQUS is used to build FE models to simulate the load-shortening responses of tubes under combined loads. The r

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Kristoffersen, Martin, Tore Børvik, Magnus Langseth, Håvar Ilstad, and Erik Levold. "Transverse Deformation of Pressurised Pipes With Different Axial Loads." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-62507.

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Pipelines residing on the seabed are exposed to various hazards, one of them being denting, hooking and release of the pipeline by e.g. anchors or trawl gear. As a pipeline is displaced transversely in a hooking event, an axial tensile load resisting the displacement builds up in the pipeline. This study examines the effect of applying three different axial loads (zero, constant, and linearly increasing) to a pipe while simultaneously deforming it transversely. A fairly sharp indenter conforming to the prevailing design codes was used to deform the pipes. These three tests were repeated with a

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Bai, Yong, Yu Wang, and Peng Cheng. "Analysis of Reinforced Thermoplastic Pipe (RTP) under Axial Loads." In International Conference on Pipelines and Trenchless Technology. American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412619.075.

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Błachut, J., and D. Sala. "Plastic Loads for Cones Subjected to Internal Pressure and Axial Tension." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65184.

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The paper discusses envelopes of combined loading corresponding to: (i) first yield (ii) plastic load, and (iii) plastic instability load. The latter two were researched in the past but for a single load, only. The past idea has been expanded in the paper to two, practically relevant, simultaneously acting loads. Conical shell serves here as an example. It is shown that the ratio of area of plastic load envelope to the area associated with the first-yield envelope is 3.2 whilst the similar ratio of plastic instability to the first-yield envelope amounts to 25.8. This indicates ‘a modest’ (320

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Blachut, J., A. Muc, and J. Rys´. "Plastic Buckling of Cones Subjected to Axial Compression and External Pressure." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57618.

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The paper provides details about buckling tests on six steel cones and the corresponding numerical estimates of failure load (asymmetric bifurcation and/or collapse). Test models were machined from 250 mm billet. The wall thickness was 2 mm, small-end radius was 74.0 mm and the large radius end was 100 mm. The semi-cone angle was 14 deg. Cones had substantial, and integral top and bottom flanges. Experimental failure loads were obtained for: (i) the first two cones subjected to axial compression, (ii) subsequent two cones subjected to external pressure, and (iii) the remaining two models subje

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Petrovic, Milan V., and Walter Riess. "Off-Design Flow Analysis and Performance Prediction of Axial Turbines." In ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-gt-055.

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Through-flow methods for calculations in axial flow turbines are limited by two facts: they cannot handle local flow reversal, and loss prediction at off-design operating conditions is not sufficiently accurate. An attempt to overcome these limitations is presented in this paper. The developed calculation method is based on the through-flow theory and the finite element solution procedure, but it also includes extensions and improvements. Consequently, the method may be used to predict the flow field and the turbine performance at the design load as well as for wide range of part loads. The co

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Raporty organizacyjne na temat "Axial loads"

Badcock, C. D., and R. Madhavan. PR-106-521-R02 Pipe Collapse under Combined Axial Tension and External Pressure. Pipeline Research Council International, Inc. (PRCI), 1987. http://dx.doi.org/10.55274/r0011756.

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This report documents the work accomplished during the course of a three year period. The main objective of this study was to investigate the collapse of thick-walled tubes under combined axial tension and pressure. A combined analytic and experimental approach was adopted. The D/t range of interest was 10-40. A number of collapse tests were conducted using small diameter tubing. Careful measurements of geometrical and material parameters were carried out before each collapse test. Tension-pressure collapse envelopes were obtained for tubes of different D/t. Collapse tests involving different

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Honegger, Wijewickreme, and Monroy. L52325 Assessment of Geosynthetic Fabrics to Reduce Soil Loads on Buried Pipelines - Phase I and II. Pipeline Research Council International, Inc. (PRCI), 2011. http://dx.doi.org/10.55274/r0010398.

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High soil loads on buried pipelines can lead to unacceptably high pipeline strains developed in response to permanent ground displacement. Common causes of permanent ground displacement are related to slope instability as a result of heavy precipitation or ground subsidence. In addition, several permanent ground displacement hazards are related to earthquakes including surface fault displacement, triggered landslide movement, surface ground settlement related to liquefaction, and lateral spread displacement. Result: Four specific areas of investigation were completed: 1.Performed baseline test

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Madhavan, R., M. K. Yeh, S. Kyriakides, and C. D. Babcock. L41041 Pipe Collapse Under External Pressure and Axial Tension (PUPA) Computer Program Manual. Pipeline Research Council International, Inc. (PRCI), 1987. http://dx.doi.org/10.55274/r0011342.

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PUPA is a computer program which predicts the critical loads of a long tube under external pressure and axial tension. The program takes into account the effect of inelastic material behaviour on collapse and could be used for tubes with diameter to thickness ratio as low as 10. The analysis is based on a principle of virtual work type of formulation and the resulting nonlinear equilibrium equations are solved using Newton-Raphson method. The model implemented considers a long tube under generalized plane strain conditions and uniform ovalization. Effect of initial ovality, residual stresses a

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Honegger. L51990 Extended Model for Pipe Soil Interaction. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010152.

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This program contributes to maintaining and improving the integrity and safety of existing pipelines with regard to ground movement hazards, and reducing the capital costs of new pipeline systems. The research program focused on the axial, lateral and complex loading of pipeline due to soil movements. It includes (1) a literature review: it presents significant issues related to modeling pipe-soil interaction with a focus to recent development since ASCE (1984); (2) axial loading: it includes a summary of the methods to estimate the axial soil forces on pipeline and recent field measurements o

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Francini. L52319 Biaxial Loading of Corroded Casing Users Manual. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0010578.

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Decisions by storage operators to repair or replace well casing with metal loss require an accurate assessment of the degree of metal loss and the ability to determine the effect of that loss on the remaining strength of the casing. A new generation of logging tools (developed with PRCI cofunding) has increased the ability to accurately size metal loss defects in casing. Prior work funded by PRCI has also included testing the remaining strength of casing with metal loss defects. This testing was performed on casing samples that were not subject to the tensile loads that typical well casing in

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Michalopoulos, C. D. PR-175-420-R01 Submarine Pipeline Analysis - Theoretical Manual. Pipeline Research Council International, Inc. (PRCI), 1985. http://dx.doi.org/10.55274/r0012171.

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Describes the computer program SPAN which computes the nonlinear transient response of a submarine pipeline, in contact with the ocean floor, to wave and current excitation. The dynamic response of a pipeline to impact loads, such as loads from trawl gear of fishing vessels, may also be computed. In addition, thermal expansion problems for submarine pipelines may be solved using SPAN. Beam finite element theory is used for spatial discretization of the partial differential equations governing the motion of a submarine pipeline. Large-deflection, small-strain theory is employed. The formulation

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Dinovitzer, Aaron. PR-214-154503-R01 Pipeline Strains Induced by Slope Movement. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011609.

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Pipeline integrity may be affected by the action of the external soil loads that can be generated by ground movements or slope failures and the structural integrity threat of these geotechnical failures is not well understood. The threat presented to a pipeline by a localized slope failure is not directly related to magnitude of the soil movement involved, but related to the stress and strains induced in the pipeline by the moving soil block. This project demonstrated and applied advanced pipe-soil interaction numerical modeling tools in the assessment of slope movements directed long the pipe

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Wang, Yao, Jeehee Lim, Rodrigo Salgado, Monica Prezzi, and Jeremy Hunter. Pile Stability Analysis in Soft or Loose Soils: Guidance on Foundation Design Assumptions with Respect to Loose or Soft Soil Effects on Pile Lateral Capacity and Stability. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317387.

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The design of laterally loaded piles is often done in practice using the p-y method with API p-y curves representing the behavior of soil at discretized points along the pile length. To account for pile-soil-pile interaction in pile groups, AASHTO (2020) proposes the use of p-multipliers to modify the p-y curves. In this research, we explored, in depth, the design of lateral loaded piles and pile groups using both the Finite Element (FE) method and the p-y method to determine under what conditions pile stability problems were likely to occur. The analyses considered a wide range of design scen

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Author, Unknown. PR-203-027-R01 Evaluation of Screen Testing Program for J-Lay Connections. Pipeline Research Council International, Inc. (PRCI), 1992. http://dx.doi.org/10.55274/r0012125.

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This report discusses the results of a testing program designed to simulate the operational conditions imposed on a J-lay installed, 13%" subsea pipeline assembled with mechanical connections. The program objective was to gain an understanding of the long-term sealing integrity of various mechanical connections. The connections were subjected to combinations of cyclic internal pressure, cyclic temperature, axial compression, and reverse torsion. The testing results show that the mechanically interlocked Reflange C-Con II connection and two premium threaded connections, the Hunting Fox and Sumi

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Mohr, H. O. PR-209-9217-R01 Mechanical Connections for J-lay. Pipeline Research Council International, Inc. (PRCI), 1994. http://dx.doi.org/10.55274/r0012126.

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