Academic literature on the topic 'Tensile strains'

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Journal articles on the topic "Tensile strains"

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Khalsa, Partap S., Robert H. Lamotte, and Peter Grigg. "Tensile and Compressive Responses of Nociceptors in Rat Hairy Skin." Journal of Neurophysiology 78, no. 1 (1997): 492–505. http://dx.doi.org/10.1152/jn.1997.78.1.492.

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Khalsa, Partap S., Robert H. LaMotte, and Peter Grigg. Tensive and compressive responses of nociceptors in rat hairy skin. J. Neurophysiol. 78: 492–505, 1997. Mechanically sensitive nociceptor afferents were studied in a preparation of isolated skin from rat leg. Each neuron was studied while the skin was subjected to tensile and compressive loading. The experiment was designed to create highly uniform states of stress in both tension and compression. Tensile loads were applied by pulling on the edges of the sample. Applied loads were used to determine the tensile stresses. Surface displacemen
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Shuaiquan, Zhao, Chang Yuping, Yang Yadie, Zhang Minglonghai, Hasan Kamrul, and Hu Hong. "Auxetic behavior of warp knitted fabric under repeating tension." Textile Research Journal 91, no. 15-16 (2021): 1732–41. http://dx.doi.org/10.1177/0040517521989277.

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In our previous study, a novel class of auxetic warp knitted fabrics were developed and their auxetic behaviors were studied under a single tensile test. However, during daily use, the fabrics are usually subjected to repeating tension rather than single tension. Therefore, the durability of the fabrics’ auxetic performance is of great importance. So far, the auxetic behavior of fabrics under repeating tension has not systematically been investigated. In this paper, we report a study on the auxetic behavior of warp knitted fabrics under repeating tension. All the fabric samples were subjected
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Chen, Cai, Yan Beygelzimer, Roman Kulagin, and Oleksandr Davydenko. "Construction of tensile stress-strain curves for solid bars pre-deformed by gradient shear strain." Обробка матеріалів тиском, no. 1(50) (March 31, 2020): 114–18. http://dx.doi.org/10.37142/2076-2151/2020-1(50)114.

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Cai Chen, Beygelzimer Y., Kulagin R., Davydenko O. Construction of tensile stress-strain curves for solid bars pre-deformed by gradient shear strain. Material working by pressure. 2020. № 1 (50). P. 114-118.
 Strain hardening curves were derived for the first time for tension of cylindrical solid bars in the presence of a linear strain gradient produced by severely pre-straining by torsion. An analytical formula was obtained, which enables constructing the local stress-strain curve. Data obtained for pure copper samples pre-twisted to different levels of shear strain were used. A saturati
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Themelis, G., and J. Weertman. "Stereoimaging of tensile plastic strains." Scripta Metallurgica et Materialia 24, no. 9 (1990): 1719–24. http://dx.doi.org/10.1016/0956-716x(90)90535-o.

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TAKAHASHI, Y., M. DAIMARUYA, H. KOBAYASHI, H. TSUDA, and H. FUJIKI. "IMPACT TENSILE PROPERTIES OF YAG LASER WELDED BUTT JOINTS MADE BY DIFFERENT STEEL SHEETS FOR VEHICLES." International Journal of Modern Physics B 22, no. 09n11 (2008): 1712–17. http://dx.doi.org/10.1142/s0217979208047304.

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The tensile properties of YAG laser welded butt joints using different high strength steel sheets with a tensile strength of 270 MPa, 590 MPa and 980 MPa (denoted HR270, HR590 and HR980, respectively) were investigated at static and dynamic rates, together with the three kinds of laser welded joints made by the same steel sheets. The impact tensile tests were performed by using the vertical type of split Hopkinson tension bar apparatus, while the static tensile tests were carried out using a universal testing machine INSTRON5586. The impact tensile strengths were significantly increased in com
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Wu, W. C., Z. M. Ao, C. H. Yang, et al. "Hydrogenation of silicene with tensile strains." Journal of Materials Chemistry C 3, no. 11 (2015): 2593–602. http://dx.doi.org/10.1039/c4tc02095b.

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The energy barrier for hydrogenation of silicene decreases as the strains increase, and the barrier reduces from 1.71 to 0.24 eV when the strain reaches the critical value of 12%. In this way, the reaction time for the hydrogenation of silicene can accelerate significantly from 8.06 × 10<sup>16</sup> to 1.68 × 10<sup>−8</sup> s.
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Yao, Jia Wei, Yu Pu Song, Li Kun Qin, and Ling Xia Gao. "Mechanical Properties and Failure Criteria of Concrete under Biaxial Tension and Compression." Advanced Materials Research 261-263 (May 2011): 252–55. http://dx.doi.org/10.4028/www.scientific.net/amr.261-263.252.

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Utilizing the large static-dynamic triaxial test system, 7 proportional loading biaxial tensile and compressive tests of concrete were conducted. The proportional loading paths are 0 (uniaxial compression), -0.05, -0.1, -0.15, -0.2, -0.25 and ∞ (uniaxial tension). Compressive and tensile strength were measured as well as the strains at two loading directions. Considering the ratio to tension and compression, failure criteria of ordinary concrete under biaxial tension and compression was established, which has a good agreement with test value.
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Rizzone, Katherine, Grace E. Weyand, Michael S. Richards, Catherine K. Kuo, and Mark R. Buckley. "MAPPING COMPRESSIVE AND TENSILE STRAINS OF THE PATELLAR TENDON IN OSGOOD-SCHLATTER DISEASE USING ULTRASOUND ELASTOGRAPHY." Orthopaedic Journal of Sports Medicine 7, no. 3_suppl (2019): 2325967119S0002. http://dx.doi.org/10.1177/2325967119s00024.

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Background Osgood-Schlatter Disease (OSD) impacts millions of young athletes every year, yet its biomechanical etiology remains unclear. It’s been postulated that increased growth velocity in children elevates tension within the patellar tendon, placing distal strain on the tibial tubercle, causing anterior knee pain, but this process has not been previously elucidated. The purpose of this study was to evaluate axial tensile and transverse compressive strains in adolescent patellar tendons during exercise to identify differences between those with and without OSD using a cumulative strain, ult
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Zhang, Yingbo, Kaare Höeg, Weibiao Wang, and Yue Zhu. "Watertightness, cracking resistance, and self-healing of asphalt concrete used as a water barrier in dams." Canadian Geotechnical Journal 50, no. 3 (2013): 275–87. http://dx.doi.org/10.1139/cgj-2011-0443.

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The coefficient of permeability of hydraulic asphalt concrete is in the range 10−8–10−10 cm/s. Laboratory test results show that triaxial specimens in axial compression can undergo axial strains up to 18% without any significant increase in permeability until approaching the compressive strength. For temperatures between 5 and 20 °C and strain rates between 2 × 10−3%/s and 5 × 10−3%/s, conventional hydraulic asphalt concrete can tolerate 1%–3% tensile strains before cracking in direct tension tests and strains up to 3%–4% in bending. At 20 °C the tensile and bending strains at cracking are 2–4
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Yu, Tianbo, Yan Du, Guohua Fan, Rozaliya Barabash, Dorte Juul Jensen, and Yubin Zhang. "In Situ Synchrotron X-ray Micro-Diffraction Investigation of Elastic Strains in Laminated Ti-Al Composites." Metals 11, no. 4 (2021): 668. http://dx.doi.org/10.3390/met11040668.

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Spatially resolved elastic strains in the bulk interior of a laminated Ti-Al metal composite were studied during in situ tensile loading at strains up to 1.66% by a synchrotron-based micro-diffraction technique, namely differential aperture X-ray microscopy (DAXM). For both Al and Ti grains, deviatoric elastic strains were estimated based on polychromatic X-ray microbeam diffraction, while lattice strains along the normal direction of the tensile sample were directly measured using monochromatic X-ray microbeam diffraction. The estimated deviatoric strains show large spatial variations, and th
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Dissertations / Theses on the topic "Tensile strains"

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Lin, Muh-ren. "Experimental investigation of temperature effect on uniaxial tensile test /." The Ohio State University, 1986. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487266011224679.

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Leung, Ming Yan. "Dynamic characterization of micro scale samples using the Hopkinson tensile bar technique /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?MECH%202007%20LEUNG.

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Win, San San Civil &amp Environmental Engineering Faculty of Engineering UNSW. "Tensile strength of compacted soils subject to wetting and drying." Awarded by:University of New South Wales. School of Civil and Environmental Engineering, 2006. http://handle.unsw.edu.au/1959.4/31157.

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Knowledge of the stress-strain relationship of the compacted soils in tension is of importance for understanding of cracking that occurs in earth structures, in particular embankment dams and landfill barriers. Understanding the correlation between tensile properties and traditional soil parameters and soil suction is essential in identifying problems associated with desiccation induced cracking. A series of extensive laboratory experiments were performed on three different soils from existing embankment dams. This thesis concentrated on the investigation of tensile strength in relation to the
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Vorakunpinij, Adisak. "The effect of paper structure on the deviation between tensile and compressive responses." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/7058.

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Roth, Michael Jason 1975. "Flexural and tensile properties of thin, very high-strength, fiber-reinforced concrete panels." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-11062007-215816.

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Yang, Yang. "Stress intensity factors of circumferential semi-elliptical internal surface cracks of tubular member subjected to axial tensile loading." Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2182941.

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Clarke, Jo Ann Marie Carleton University Dissertation Engineering Mechanical. "High strain rate tensile testing." Ottawa, 1993.

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Sasazaki, Yoshihiro. "Ultrastructure of articular cartilage under tensile strain." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410724.

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Ouyang, Xin. "CONSTITUTIVE EQUATIONS OF RUBBER UNDER LARGE TENSILE STRAIN AND HIGH STRAIN RATES." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1154146622.

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Berry, Catherine Cecilia. "The influence of tensile strain on fibroblasts in culture." Thesis, Queen Mary, University of London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271478.

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Books on the topic "Tensile strains"

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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J, Fields R., and National Institute of Standards and Technology (U.S.), eds. A computer-controlled tensile stage for in-situ X-ray measurements. U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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Center, Lewis Research, ed. Modfications of system for elevated temperature testing and stress-strain measurement of metal matrix composites. National Aeronautics and Space Administration, Lewis Research Center, 1985.

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Kindermann, M. R. A slow strain-rate tensile testing machine. Dept. of Defence, Aeronautical Research Laboratory, 1989.

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Alex, Vary, and United States. National Aeronautics and Space Administration., eds. Tensile strain measurements of ceramic fibers using scanning laser acoustic microscopy. National Aeronautics and Space Administration, 1992.

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Book chapters on the topic "Tensile strains"

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Tvergaard, V. "Tensile Instabilities at Large Strains." In Bifurcation and Stability of Dissipative Systems. Springer Vienna, 1993. http://dx.doi.org/10.1007/978-3-7091-2712-4_6.

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Rowe, R. Kerry, and Yan Yu. "Tensile Strains in Geomembrane Landfill Liners." In Proceedings of GeoShanghai 2018 International Conference: Ground Improvement and Geosynthetics. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0122-3_1.

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Li, Xu, Weiqin Liu, Jinxi Qin, Xiuxing Zhao, and Jie Chen. "Study on Strain Characteristics of Long Longitudinal Slope Asphalt Pavement Surface." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_39.

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AbstractTo study the changes in shear and tensile strains of asphalt pavement under vehicle moving loads on long longitudinal slopes, a structural model of asphalt pavement was established using Abaqus finite element calculation software. A single factor analysis was conducted on different slopes, driving speeds, temperatures, and braking coefficients. The calculation results show that the maximum shear strain increases with the increase of road slope, temperature, and braking coefficient, but decreases with the increase of driving speed; The maximum tensile strain increases with the increase
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Wang, Puyan, Feng Tu, Kai Shu, Yi Zhao, Weijun Zhong, and Jian Zhou. "Comparative Study of Tensile Capacity Testing Methods for Metal Connectors Used in Precast Concrete Insulated Sandwich Wall Panels." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4090-1_14.

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AbstractMetal connectors are important load-bearing components in precast concrete insulated sandwich wall panels, and their tensile capacity need to be determined through testing. Due to the variety of connector styles and different anchoring structures, this article focuses on the commonly used single-pull and double-pull test methods, using typical specifications of pin connectors and flat connectors for tensile testing, and considering the influence of different constraints on the single-pull test method. By comparing the failure modes, tensile strains and tensile capacity of the connector
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Haken, Bennie, Arno Godeke, and Herman H. J. Kate. "Investigation of Microscopic Strain by X-Ray Diffraction in Nb3Sn Tape Conductors Subjected to Compressive and Tensile Strains." In Advances in Cryogenic Engineering Materials. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9059-7_189.

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Remek, Lubos, and Veronika Valaskova. "Data Gathering and Evaluation of Tensile Strains Measured in APT with Mathematical Computation Method." In Lecture Notes in Civil Engineering. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-55236-7_46.

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Tang, Lin, Songtai Sun, Xiaowu Tang, and Ruixuan Zhang. "Analysis of Pore Size Distributions of Nonwoven Geotextiles Subjected to Unequal Biaxial Tensile Strains." In Springer Series in Geomechanics and Geoengineering. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97112-4_189.

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Delannay, L., M. Melchior, Pascal J. Jacques, and Paul Van Houtte. "Simulation of the Lattice Strains Developed during a Tensile Test on a Multiphase Steel." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-975-x.1627.

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Gooch, Jan W. "Tensile Strain." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11632.

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Tang, Lin, Xiao-Wu Tang, and Shao-xing Qu. "Analytical Study of the Variation of Pore Size Characteristics with Biaxial Tensile Strains on Woven Slit-Film Geotextiles." In Proceedings of the 8th International Congress on Environmental Geotechnics Volume 2. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2224-2_91.

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Conference papers on the topic "Tensile strains"

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Fujishiro, Taishi, Yusaku Tomio, Taro Muraki, and Takuya Hara. "Effect of Plastic Strain on Hydrogen Absorption of Low Alloy Carbon Steel for Linepipe." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19139.

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Abstract Hydrogen embrittlement, such as sulfide stress cracking, occurs in low-alloy carbon steels under sour environments. The amount of absorbed hydrogen increases with increasing plastic strain introduced into the steel materials. The susceptibility to hydrogen embrittlement increases with the strain introduction. However, even though various strains applied in various paths are introduced through pipe manufacturing processes, the effect of the strain path on hydrogen absorption behavior during operation has not been fully understood. This paper describes the relationship between the strai
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Costa, Joao Paulo, Fabio Arroyo, and Philippe Darcis. "SSC of TMCP Materials: Criticalities among the Methodologies for Load Definition." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-21105.

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Abstract The Sulfide Stress Cracking evaluation based on Four Point Bend Test specimens (FPBT-SSC) is widely used to assess Line Pipes performance on sour environments. An important stage of the test configuration is to determine the strain corresponding to the desired load (e.g., 90% AYS) and different methodologies can be used. The present work studies these different methodologies and their influence on the applied FPBT-SSC load. Tensile specimens were machined from DNV450 sour grade pipes at a location as close as possible to 4PBT samples. The tensile test results were used to define the s
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Ross, G. R., and O. O. Ochoa. "Hygroscopic Response of Hybrid Composites." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95140.

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Abstract In order to assess the suitability of hybrid composite structures for use in offshore environments, a micromechanical analysis of hybrid composites is undertaken. Of particular interest are the combined effects of defects and moisture on the material properties and failure initiation. A representative cell approach utilizing the finite element method is used to study stress distributions within dry and wet hybrid composites and the response of hybrid composites containing debonds to transverse loads. A failure subroutine is incorporated into the finite element analysis to predict fail
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Shores, David A., John G. Goedjen, Qiti Guo, and James H. Stout. "In-situ Measurement of Stresses in Oxide Scales Growing at High Temperatures." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93254.

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Abstract A high temperature X-ray diffraction method based on the Laue (transmission) mode has been developed to measure strains associated with the growth of an oxide scale on a metal. These growth strains in the attached oxide scale and metal substrate are determined simultaneously and in real time by the change in spacing of selected lattice planes relative to the unstrained spacing at the same temperature. The X-ray diffraction setup has been tested by comparing measurements of thermal expansivity of Au and Cr2O3 with well-known data. The technique has been applied to oxide scales on singl
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Liu, Ming, Yong-Yi Wang, and Laurie Collins. "Tensile Strain Capacity of Spiral Pipes." In 2012 9th International Pipeline Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ipc2012-90661.

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Pipelines may experience high longitudinal strains from seismic events, frost heave, thaw settlement, unstable slopes, and mine subsidence, etc.. Those strains could be well beyond the elastic limit of the materials and the strain based design (SBD) criteria must be used. Most work on the SBD in recent years has been focused on the straight long seam pipes. The application of the SBD principles to the spiral pipes has not been examined. Spiral-welded pipes are widely used for long-distance transmission pipelines. These pipes have a demonstrated history of satisfactory service. However, the per
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Burkett, M. W. "Eulerian Hydrocode Modeling of a Dynamic Tensile Extrusion Experiment." In 2019 15th Hypervelocity Impact Symposium. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/hvis2019-057.

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Abstract Eulerian hydrocode simulations using the Mechanical Threshold Stress (MTS), Zerilli-Armstrong (Z-A), and Johnson Cook (J-C) flow stress models were performed to provide insights into dynamic tensile extrusion (DTE) experiments with copper (Cu) and tantalum (Ta). The extrusion of Cu and Ta projectiles was simulated with an explicit, two-dimensional Eulerian continuum mechanics hydrocode and compared with data to determine if this extrusion concept is a useful indirect hydrocode material strength model evaluation experiment. The data consisted of high-speed images of the extrusion proce
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Laforte, Caroline, and Jean-Louis Laforte. "Tensile, Torsional and Bending Strain at the Adhesive Rupture of an Iced Substrate." In ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/omae2009-79458.

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In order to develop an effective deicing device using mechanical deformation of substrates, the adhesive and/or cohesive strains of ice at rupture were measured for three different modes of solicitation: tensile, twisting and bending. A total of 108 icing/deicing tests were conducted with aluminum and nylon samples covered with hard rime ice deposits 2, 5, and 10 mm thick strained at various strains rates in brittle regime at −10°C. Real time deformation was precisely monitored using a strain gage fixed to the A1 interface, and force by means of load cells and a torque-meter. Deicing strain wa
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Zhussupbekov, Askar, and Balzhan Kaldanova. "Research of Horizontal Tensile Strains Determined with Triaxial Appratus." In The 13th Baltic Sea Region Geotechnical Conference. Vilnius Gediminas Technical University, 2016. http://dx.doi.org/10.3846/13bsgc.2016.012.

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This report described the methodology and results of soil tests in the compression device with the ability to specify horizontal motions. The research introduced of behaviour of undermining soils – the areas affected by underground mining applications for the extraction of minerals, which resulted in the undermining thickness may occur uneven subsidence of the earth’s surface and soil subsidence. This paper is important for understanding of interaction of foundations with subsidence ground.
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Zhu, Xian-Kui, and Brian N. Leis. "Effect of Axial Tensile Strain on Yield Load-Carrying Capacity of Pipelines." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31582.

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This paper theoretically investigates the effect of axial tensile strain on the plastic yield load-carrying capacity of pipelines. The elasticity theory and three plastic yield criteria of Tresca criterion, von Mises criterion, and Average Shear Stress Yield (ASSY) criterion are adopted in the analysis. General solutions of elastic stresses and strains are obtained for a thin-walled, end-caped pipe subjected to internal pressure and an axial strain that is used to represent the outside applied force. Based on the three plastic yield criteria, different nonlinear governing equations are obtaine
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Williams, John L., Pat D. Do, and Thomas L. Schmidt. "Tensile Properties of Bovine Proximal Tibial Growth Plate Cartilage." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0132.

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Abstract Seventy-one microtensile samples of bone-cartilage-bone from the lateral, central and medial portions of the proximal tibial growth plate were tested to failure at three speeds. Tensile strength, toe modulus, tangent modulus, and strain energy density varied by both location and strain rate, being stronger and stiffer on the lateral side and at higher strain rates. No differences could be detected in the ultimate strains by either region or strain rate.
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Reports on the topic "Tensile strains"

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Wang, Yong-Yi. PR-350-174500-R02 Characterization of Pipeline Wall Loss for Strain Capacity. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011552.

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The principal objective of this project is to develop tools that allow for the evaluation of the effects of wall loss (corrosion) anomalies on pipelines experiencing high longitudinal strains. The first phase of this project started in 2016 and involved full-scale experimental tests. The second phase (current phase), funded in 2017, aimed to develop assessment tools for pipelines that contain corrosion anomalies and experience high longitudinal strains. The tools, developed through systematic studies using finite element analyses and experimental tests, provide three types of output: (1) The t
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Wang and Cheng. L52193 Guidelines on Tensile Strain Limits. Pipeline Research Council International, Inc. (PRCI), 2004. http://dx.doi.org/10.55274/r0011134.

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There are no generally accepted industry standards that allow the determination of the maximum tensile strain limits of girth welds. Most ECA (Engineering Critical Assessment) codes are stress-based and cannot be used if the longitudinal strain is greater 0.5%. The objective of this project was to develop guidelines on tensile strain limits of pipeline girth welds as a part of the overall development of seismic design guidelines. The loading on pipelines from seismic events is largely displacement-controlled. Such loading can impose high longitudinal tensile strains on the girth welds of pipel
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Soret, Clement, Melissandre Bonnaudet, and Mures Zarea. PR-306-143732-R01 Adv Material Charact of Dent and Gouge Samples Imprvd Strain Eval. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011544.

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This report provides a more accurate micro-hardness vs. strain correlation based on the larger strains achievable with interrupted tensile tests on notched specimens from two modern steels des-ignated as Pipe #1 and Pipe #2 and two vintage steels designated as Pipe #3 and Pipe #4. These pipes were used to evaluate the mechanical strength of dent and gouge defects in PRCI projects MD-4-1, MD-4-6 and DOT #339. Interrupted tensile tests were performed on specimens with dif-ferent geometries, which allowed to identify accurate parameters for a constitutive mechanical be-havior law that represents
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4

Wang and Cheng. L52020 Extension of Strain Design Criteria to Buried HAZ Defects. Pipeline Research Council International, Inc. (PRCI), 2004. http://dx.doi.org/10.55274/r0011103.

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This project is a part of a multi-year effort intended to develop alternative defect acceptance criteria for pipelines experiencing high longitudinal strains.� A systematic investigation of various factors affecting the tensile strain limits of buried girth weld defects is conducted.� By using the concept of crack driving and apparent toughness, the baseline tensile strain limits of girth welds with buried defect are established for a wide range of pipe grades, wall thickness, defect size, and material toughness.� The relative influence of various factors affecting the strain limits of girth w
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5

Holden, T., R. Hosbons, and J. Root. CWI1988-Andi-21 Neutron Diffraction of Axial Residual Strains Near a Circumferential Crack. Pipeline Research Council International, Inc. (PRCI), 1989. http://dx.doi.org/10.55274/r0011391.

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The intent of the experiments reported here was to measure the axial residual strain at the 6:00 position of a girth-weld in the presence of a crack which had propagated a few millimeters from the inside diameter of the llnepipe. The linepipe, 914 mm diameter and average thickness 16.2 mm had been previously examined at Chalk River and the strains at the 1:30, 6:00 and 10:30 positions had been measured prior to the introduction of the crack. Large changes in the level of axial residual strain and introduction of strong through-wall strain gradients are observed on re- welding 16 mm line pipe w
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6

Holden, T. M., J. H. Root, and R. R. Hosbons. PR-ANDI-12 Axial Residual Strain Near a Girth-Weld in 11MM and 16MM Line Pipe. Pipeline Research Council International, Inc. (PRCI), 1988. http://dx.doi.org/10.55274/r0012085.

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Neutron diffraction measurements have been made of the axial residual strains in the vicinity of a girth-weld in 914 mm (36 in.) diameter linepipe of thickness 11 and 16 mm. The measurements were made at the 6:00, 1:30, and 10:00 positions. The maximum tensile residual strain observed ( 15 x 10- ) was recorded for the 11 mm linepipe on the inside wall 25 mm from the weld centerline.
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7

Ndubuaka, Kachi. PR676-233801-R09 Pipe Vulnerability Analysis Methodology. Pipeline Research Council International, Inc. (PRCI), 2025. https://doi.org/10.55274/r0000142.

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Continuous buried pipelines are generally required to traverse long distances and as such, inevitably pass through unstable landforms which may impart critical levels of stress beyond the intrinsic capacity of the pipelines. The deformational response of buried pipelines subject to relative ground movement is strongly influenced by the geotechnical properties of the immediate backfill and surrounding soil, the size and direction of the soil movement in which the pipeline is embedded, as well as mechanical soil-pipe interaction behavior. With respect to the mode of deformation, relative ground
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8

Graville, B. A. L51707 Factors Affecting Heat Affected Zone Root Strains in Pipeline Girth Welds and Repairs. Pipeline Research Council International, Inc. (PRCI), 1993. http://dx.doi.org/10.55274/r0010219.

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A previous study on hydrogen cracking in the heat affected zone of pipeline girth welds and repairs found that large strains in the HAZ transverse to the weld played a major role in causing cracking. Large transverse strains were believed to arise from bending of the weld due to the thermal contraction of the weld around the pipe circumference. Large root strains were simulated in the laboratory using a bend test which enabled the effect of material composition and strength to be studied. In the bend test, the specimen deflection at the onset of cracking, indicated by a drop in load, was used
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9

Denys, R. M., and A. A. Lefevre. L51931 Weld Metal Yield Strength Mismatch and Yield-to-Tensile Ratio on the Girth Welds in API 5L X80. Pipeline Research Council International, Inc. (PRCI), 2002. https://doi.org/10.55274/r0011239.

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An experimental program has been conducted to quantify the failure characteristics and flaw tolerance levels of pipeline girth welds made in large diameter pipes of API 5L X 80 quality. The test programme was designed such as to verify whether, in the presence of surface breaking root flaws of nominally 3.0 mm deep, such girth welds can accommodate remote pipe metal strains of minimum 0.50 % (Gross Section Yielding).
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10

Vito, L. F. Di, G. Mannucci, G. Demofonti, et al. CGX-00-003 Tenaris Double Joint for Deep Water Applications Subjected to Large Cyclic Plastic Strains. Pipeline Research Council International, Inc. (PRCI), 1994. http://dx.doi.org/10.55274/r0011808.

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The evaluation of the defect tolerance assessment for girth welded joints of seamless pipes for off-shore applications when subjected to large cyclic plastic strains. The reeling laying technique, which is considered to be the most severe from this point of view, has been considered and studied in depth in order to determine how the several plastic strain cycles suffered by the joint during the laying could affect the defect tolerability. Advanced Engineering Critical Assessment methods have been considered in the analysis as the BS 7910 FAD approach implemented with the corrections recommende
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