Academic literature on the topic 'Torsion test'

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Journal articles on the topic "Torsion test"

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Li, Xin, and Li Liang. "Experimental and Numerical Study on Torsional Behavior of Precast Concrete Screw Pile Body." Applied Mechanics and Materials 188 (June 2012): 137–43. http://dx.doi.org/10.4028/www.scientific.net/amm.188.137.

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Precast concrete screw pile is a new kind of pile foundation. Because the pile bears very large torsion in construction, the torsional properties of pile body including cracking torsion, ultimate torsion and torsional deformation were studied in this paper in order to improve the anti-torsional ability of precast concrete screw pile. Experimental method and numerical method are used to research the torsional behavior of precast concrete pile body. Experimental and numerical results of cracking torsion, ultimate torsion and relationship between torsion and angle of twist per unit length of different specimens are obtained. In addition, five factors of strength level of concrete, degree of prestress, distance of spiral hoop, concrete cover and diameter of spiral hoop influencing on torsional behavior of precast concrete pile body are researched by orthogonal numerical test. The rational finite element model and solution method are concluded for calculating the torsional behavior of concrete pile. Moreover, the rational pile type and design parameters of precast concrete screw pile are obtained.
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Jiang, Chenchen, Haojian Lu, Ke Cao, Wenfeng Wan, Yajing Shen, and Yang Lu. "In Situ SEM Torsion Test of Metallic Glass Microwires Based on Micro Robotic Manipulation." Scanning 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/6215691.

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Microwires, such as metallic, semiconductor, and polymer microwires and carbon fibers, have stimulated great interest due to their importance in various structural and functional applications. Particularly, metallic glass (MG) microwires, because of their amorphous atoms arrangement, have some unique mechanical properties compared with traditional metals. Despite the fact that substantial research efforts have been made on the mechanical characterizations of metallic glass microwires under tension or flexural bending, the mechanical properties of microwires under torsional loading have not been well studied, mainly due to the experimental difficulties, such as the detection of torsion angle, quantitative measurement of the torsional load, and the alignment between the specimen and torque meter. In this work, we implemented the in situ SEM torsion tests of individual La50Al30Ni20 metallic glass (MG) microwires successfully based on a self-developed micro robotic mechanical testing system. Unprecedented details, such as the revolving vein-pattern along the torsion direction on MG microwires fracture surface, were revealed. Our platform could provide critical insights into understanding the deformation mechanisms of other microwires under torsional loading and can even be further used for robotic micromanufacturing.
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Zhou, Hai Jun, Hong Hong Huang, and Hua Zhang. "An Experimental Study on Mechanical Behavior of Superelastic NiTi Shape Memory Alloy Bar Subjected to Torsion." Advanced Materials Research 163-167 (December 2010): 3992–95. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3992.

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An experimental study on mechanical behavior of superelastic NiTi shape memory alloy (SMA) bar subjected to torsion was made. The SMA specimen was in round bar shape, material phase was austenite and stress mode was torsion. The test was carried out by applying repeated cyclic uniform torsional load. Strain rate, strain amplitude and number of cycles were considered as test parameters. The test was described and analyzed in terms of three fundamental mechanical quantities: secant stiffness, energy loss per unit weight and equivalent damping. The test results show that SMA bar subjected to torsion, have great potential for application in seismic devices due to their considerable superelasticity and stable cyclic behaviors.
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Sung, Po-Hsien, Tei-Chen Chen, and Cheng-Da Wu. "Atomistic Simulation of ZrNi Metallic Glasses Under Torsion Test." Nano 12, no. 08 (August 2017): 1750094. http://dx.doi.org/10.1142/s1793292017500941.

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ZrNi metallic glass alloy nanowires (NWs) under torsion are studied using molecular dynamics simulations based on the many-body embedded-atom potential. The effect of cooling rate on the deformation mechanism and mechanical properties of ZrNi NWs is evaluated in terms of shear strain, torque, potential energy and radial distribution function. Simulation results show that for slower cooling rates, the NWs have larger packing density, whereas for faster cooling rates, the packing density of atoms decreases. The amount of deformation increases with increasing torsional angle before it reaches a critical torsional angle ([Formula: see text]. The torque required for deformation and the [Formula: see text] value increase with decreasing cooling rate, indicating a larger mechanical strength. Localized shear bands concentrate at regions with high shear strains, leading to the formation of torsional buckling.
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Thiyyakkandi, Sudheesh, Michael McVay, Peter Lai, and Rodrigo Herrera. "Full-scale coupled torsion and lateral response of mast arm drilled shaft foundations." Canadian Geotechnical Journal 53, no. 12 (December 2016): 1928–38. http://dx.doi.org/10.1139/cgj-2016-0241.

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Drilled shaft foundations supporting mast arm assemblies are subjected to significant torsion and lateral load during severe wind loading (e.g., hurricane). Past centrifuge studies in granular soils suggest that the design of such foundations should be performed for a coupled load case, since the lateral resistance is considerably reduced by the concurrent application of torsion. However, current design practice still considers lateral load and torsion independently due to the lack of field verification of centrifuge results. This paper reports on a full-scale test program to investigate the coupled load behavior of drilled shafts. A novel load test setup (with a heavy-duty mast arm assembly) and instrumentation were used for the combined torsion and lateral loading (e.g., wind loading). The study revealed a significant reduction in lateral resistance due to the influence of torque as observed from previous centrifuge studies. Torsional resistance was reduced (approximately 20%) by the impact of lateral load when compared with the anticipated torsional resistance based on unit skin friction values, derived from the axial load test results (i.e., no influence of lateral load). A comparison of measured torsional resistance during the combined loading with the predicted values using different approaches was also made. O’Neill and Hassan’s beta (β) method (sand) and alpha method (clay) are found to predict the torsional resistance reasonably well (±10%), while all other methods based on the standard penetration test and cone penetration test considered in the study overpredicted or underpredicted the resistance.
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Yu, Zhigang, and Deshan Shan. "Experimental and numerical studies of T-shaped reinforced concrete members subjected to combined compression-bending-shear-torsion." Advances in Structural Engineering 24, no. 12 (May 17, 2021): 2809–25. http://dx.doi.org/10.1177/13694332211012577.

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The study of reinforced concrete members subjected to combined loads always has been an important research topic in the field of engineering, but the torsional behavior of T-shaped reinforced concrete members subjected to combined loads has yet to be determined. This paper is focused on providing a detailed explanation of the torsional behavior of T-shaped reinforced concrete members subjected to combined compression-bending-shear-torsion. From the perspective of experimental tests and numerical analyses, in this paper, we discuss the effects of combined loads on the torsion bearing capacity, the development of cracks and the failure mode, strains of key points in the concrete and longitudinal reinforcement, and the relation of torsion and angular displacement. We conducted experiments and numerical analyses of four groups of reinforced concrete members by using the main variables of the axial pressure ratio and the bending moment. Also, the experimental and calculated results are compared based on the elastic-plastic damage constitutive model of concrete. Based on the test data and the existing formula, we also extended the formula used to calculate the torsion bearing capacity and provided diagrams of the interaction when combined loads were applied. In addition, the results of this study highlight the turning point from torsion failure to compression-bending-torsion failure. The test results demonstrated that torsion capability increases in the specified range of axial pressure ratio and decreases as bending increases. The test results also indicate the importance of considering the effects of compression-shear-bending on the torsion bearing capacity in the engineering design.
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PRICE, KENNETH L. "A DOMAIN TEST FOR LIE COLOR ALGEBRAS." Journal of Algebra and Its Applications 07, no. 01 (February 2008): 81–90. http://dx.doi.org/10.1142/s0219498808002679.

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Lie color algebras are generalizations of Lie superalgebras and graded Lie algebras. The properties of a Lie color algebra can often be related directly to the ring structure of its universal enveloping algebra. We study the effects of torsion elements and torsion subspaces. Let [Formula: see text] denote a Lie color algebra. If [Formula: see text] is homogeneous and torsion then x2 = 0 in [Formula: see text]. If no homogeneous element of [Formula: see text] is torsion, then [Formula: see text] so [Formula: see text] is semiprime. In this case we can give a test which uses Gröbner basis methods to determine when [Formula: see text] is a domain. This is applied in an example to show [Formula: see text] may be a domain even if [Formula: see text] contains torsion elements and torsion subspaces.
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Ashour, Samir A., Sabry A. Shihata, Ali A. Akhtaruzaman, and Faisal F. Wafa. "Prestressed high-strength concrete beams under torsion and bending." Canadian Journal of Civil Engineering 26, no. 2 (April 1, 1999): 197–207. http://dx.doi.org/10.1139/l98-054.

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Test results of 16 rectangular prestressed high-strength concrete beams subjected to the combined action of torsion and bending are presented. The major variables were the ratio of torsion to the bending moment (T/M) and the prestressing level. The beams were subjected to two levels of prestressing, corresponding to 0.05fc' and 0.10fc', where fc' is the compressive strength of concrete (about 90 MPa). Test results showed that the torque-twist relations for the test beams were approximately linear up to cracking and thereafter became nonlinear. Increasing the T/M ratio and the prestressing level increases both torsional stiffness and strength. Several theoretical methods available in the literature developed for normal-strength concrete were used to predict the torsional strength of the tested high-strength concrete beams. Interaction equations were used along with some other methods to predict the torsional capacity in the presence of a bending moment. Good agreement was observed between the experimental and theoretical results.Key words: beams (supports), bending, cracking, failure, high-strength concrete, interaction diagram, prestressed concrete, stiffness, torsion, torsional strength.
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Goanta, Viorel. "Device for Torsional Fatigue Strength Assessment Adapted for Pulsating Testing Machines." Sensors 22, no. 7 (March 30, 2022): 2667. http://dx.doi.org/10.3390/s22072667.

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The torsional fatigue test determines the fatigue limit for a certain asymmetry coefficient of the cycle. The assessment of fatigue tests is performed on specialized machines. There are two types of torsion testing machines: universal machines that have the torsion component and specialized machines only for torsion testing. Nevertheless, no matter which proposed option we choose, the purchase prices for these testing machines or the values spent for self-management are quite high. This paper presented a device used for torsion fatigue testing, adaptable to a universal pulsating testing machine, designed to determine the torsion fatigue limit for different materials. The built device is simple and reliable, and therefore inexpensive. By using this device, we can determine the limit of the torsional fatigue after any stress cycle and we can use the parameters obtained from the universal machine to which it was attached. The torque and twisting angle of the test specimen during the test can be determined by calculation. The paper also presented an experimental method for determining shear strains based on calibration experiment, using a specimen on which strain gauges were mounted. The values taken from this calibration experiment were compared with those obtained from the theoretical calculation.
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Da Cruz, Daniel Magalhães, Fernanda Mazuco Clain, and Carlos Eduardo Marcos Guilherme. "Experimental study of the torsional effect for yarn break load test of polymeric multifilaments." Acta Polytechnica 62, no. 5 (October 31, 2022): 538–48. http://dx.doi.org/10.14311/ap.2022.62.0538.

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Polymeric multifilaments have gained a significant interest in recent decades. In the studies of mechanical characteristics, although there are different types of tests, such as rupture, abrasion, creep, impact and fatigue, it can be said that the main mechanical characterisation is the tensile rupture strength (Yarn Break Load, YBL), which also serves as a parameter for other tests. The objective of this work is to evaluate the results of breaking strength under different torsional conditions in polymeric multifilaments and to determine optimal twists for failures. The test were carried out with the following materials: polyamide, polyester, and high modulus polyethylene (HMPE), and for torsional conditions: 0, 20, 40, 60, 120, 240, and 480 turns per metre. As a result, for these torsion groups, curves were obtained for the three materials that present an optimal point of maximum rupture value, which was also experimentally proven. The twist that optimises the breaking strength of HMPE is 38 turns per metre, 56 turns per metre for polyester, and 95 turns per metre for polyamide. The twist groups that exceed the optimal torsion have a deleterious effect on the material, where the multifilament ceases to be homogeneous and starts to create an excessive "spring effect". The results found differ from the recommendation of the standard that regulates the YBL test, and thus, a relationship is built between groups of optimal torsion and linear density that provides evidence that the increase in linear density causes the optimal torsion for rupture to also increase, while the standard places a condition of 30 turns per metre for linear densities greater than 2200 dtex, and 60 turns per metre for linear densities less than 2200 dtex. In addition to optimal torsion values, this conclusion is paramount, the test procedure makes a general recommendation that does not optimise the breaking strength.
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Dissertations / Theses on the topic "Torsion test"

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Ritchie, Stephen John Kerr. "The high speed double torsion test." Thesis, Imperial College London, 1996. http://hdl.handle.net/10044/1/11437.

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Smith, Gregory L. "A short range test of the universality of free fall /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/9687.

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Choi, Ki-Young. "A new equivalence principle test using a rotating torsion balance /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/9762.

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Goqo, Sicelo Praisgod. "Computational study of compact tension and double torsion test geometries." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/9108.

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In the design of many engineering components subjected to cyclic or repetitive loading,fatigue is an ever-present challenge. The engineer often endeavors to design the structural or component system in such a way that the cyclic stresses are below a particular fatigue limit, or, in fracture mechanics terms, at stress levels below threshold. In the Paris formulation, fatigue threshold, Δҝₜₕ, may be regarded as that value of cyclic stress intensity below which fatigue crack growth does not occur. For a particular material and environment, this threshold value, Δҝₜₕ, is determined experimentally by monitoring growth of a crack (typically in a compact tension ( CT) specimen) and continually reducing cyclic stress levels until the threshold condition is reached. This procedure is very cumbersome and time-consuming, and this project rather considers the design of a fracture mechanics specimen geometry in which there is a decreasing stress in tensity (with crack length) that facilitates determination of the threshold value simply at constant applied cyclic amplitude, and the crack length at which fatigue crack growth arrests.
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Valtorta, Davide. "Dynamic torsion test for the mechanical characterization of soft biological tissues." kostenfrei, 2007. http://e-collection.ethbib.ethz.ch/view/eth:29354.

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Bondar, Carin Anne. "Development of asymmetry in two caenogastropods, a test of the torsion hypothesis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62549.pdf.

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Khokhar, Aamir Muhammad. "The evaluation of shear properties of timber beams using torsion test method." Thesis, Edinburgh Napier University, 2011. http://researchrepository.napier.ac.uk/Output/4406.

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Russano, Giuliana. "A torsion pendulum ground test of the LISA Pathfinder Free-fall mode." Doctoral thesis, Università degli studi di Trento, 2015. https://hdl.handle.net/11572/367984.

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The LISA Pathfinder geodesic explorer mission for gravitational wave astronomy aims to measure a residual differential acceleration noise approaching the femto-m/s^2/Hz^1/2 levels needed for eLISA. This measurement is complicated by a large, roughly nm/s^2, stable differential gravitational acceleration that must be actively compensated in order to hold the test particles centred inside an orbiting apparatus. The actuation force applied to compensate this effect introduces a dominant source of force noise in the mission noise budget. To suppress this noise source and avoid actuation instabilities, a “free-fall†actuation control scheme has been designed: actuation is limited to brief impulses, with test masses in free fall in between two “kicks†, with this actuation-free motion then analysed for the remaining sources of acceleration ultra noise. In this work, we present the results from an extensive on-ground torsion pendulum test of this free-fall technique, which to date allows an equivalent acceleration noise measurement at the 100 fm/s^2/sqrt(Hz), a factor 3 above the LISA Pathfinder spec. We will discuss both experimental and analysis limitations to the ground experiment and some implications for the flight test.
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Smith, Brandon Joseph. "Development and Initial Testing of a Micro-Newton Torsion Pendulum with Gas-Dynamic Calibration." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/88081.

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A novel torsion pendulum thrust test stand for micro-Newton-scale spacecraft thrusters is described. The stand is designed to be robust against electromagnetic interference effects internal or external to the thruster being tested. The design and testing of a gas-dynamic calibration thruster is included. This thruster is fully self-contained on the pendulum arm, with no external wires or feedlines connected to the device and impacting the dynamic response of the underlying pendulum. Initial calibration results are shown. Zero drift and hysteresis are present in the results, evidenced by a constant steady-state displacement drift and a return to a different displacement after shutdown of the calibration thruster. Results are compared to theoretical solutions of the equation of motion. An external forcing function of facility effects is described for discrepancies between results and the theoretical solution. Further work to eliminate these effects and add damping are proposed.
MS
Many recently proposed space missions require very fine vehicle attitude and position control in support of their science objectives. Thrusters with the ability to provide this control are currently in development, from laboratory proofs of concept to initial test flights on pathfinding missions. The low levels of thrust produced by these devices, in the range of less than the weight of a mosquito, require specialized test stands with very fine resolution. This thesis describes a novel torsion pendulum design for measuring these thrusters as well as initial validation results from its calibration system using rarefied gas flow. This calibration device is fully-contained on the device’s arm, removing many common sources of compensation factors which are often needed for other test stand designs. A custom-built displacement measuring system for determining angular motion of the pendulum arm is described which allows for measuring angular displacements of the arm to the level of arcseconds and potentially fractions thereof. Initial results suggest measurement of the expected levels of thrust, while some work remains to remove lingering sources of error and achieve more precise thrust data.
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Heisser, Ronald Henry. "Design, development, and characterization of an experimental device to test torsion-controlled fracture of thin brittle rods." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105705.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (page 40).
As research continues to uncover the many different physical properties of meso- and microscale materials, it becomes more evident that these materials often behave in counterintuitive ways. Characterizing unique phenomena not only provides analogies in nature which inspire innovation at all levels of research and design but also presents new possibilities for future technological development. The discussion presented herein explores the design and development of a low-cost, manual device intended to test a hypothesis rooted in the behavior of breaking pasta that intrigued even Richard Feynman. While the mechanism for why spaghetti breaks into three or more pieces has been described, the experimental discussion presented here focuses on the effect that added torsion has on the fracture bent spaghetti. Specifically, it is possible that twisting the spaghetti a critical angle and bending it will cause it to fracture into only one piece. The idea of torsion being used to exhibit some control over how a material fractures has not been well-investigated; the results which come from this experiment may prove useful for applications even beyond the scope of thin brittle materials. With this said, the sensitivity in quantifying breaking from torsion and bending together requires that the experimental device prevent systematic error stress from negatively impacting the accuracy of the experiment. Thus much time is devoted to explanation and rationale behind the analysis of the experimental device. Alongside the device's characterization this thesis serves to be a reflection of the design process taken while creating this device. Lessons learned from this project are included in all aspects of the discussion and a section in the Appendix is devoted to a more detailed account of the design and fabrication of one device component.
by Ronald Henry Heisser.
S.B.
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Books on the topic "Torsion test"

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G, Bousman William, U.S. Army Aviation and Troop Command., and Ames Research Center, eds. An examination of the aerodynamic moment on rotor blade tips using flight test data and analysis. Moffett Field, Calif: US Army Aviation and Troop Command, 1993.

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Sreeramesh, Kalluri, United States. Army Aviation Research and Technology Activity., and United States. National Aeronautics and Space Administration., eds. Elevated temperature axial and torsional fatigue behavior of Haynes 188. [Washington, DC]: National Aeronautics and Space Administration, 1992.

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United States. National Aeronautics and Space Administration., ed. PPT thrust stand. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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United States. National Aeronautics and Space Administration., ed. PPT thrust stand. [Washington, D.C.]: National Aeronautics and Space Administration, 1995.

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1960-, Bonacuse Peter J., United States. National Aeronautics and Space Administration., and U.S. Army Research Laboratory., eds. An axial-torsional, thermomechanical fatigue testing technique. [Washington, DC]: National Aeronautics and Space Administration, 1996.

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1960-, Bonacuse Peter J., United States. National Aeronautics and Space Administration., and U.S. Army Research Laboratory., eds. An axial-torsional, thermomechanical fatigue testing technique. [Washington, DC]: National Aeronautics and Space Administration, 1996.

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1960-, Bonacuse Peter J., United States. National Aeronautics and Space Administration., and U.S. Army Research Laboratory., eds. An axial-torsional, thermomechanical fatigue testing technique. [Washington, DC]: National Aeronautics and Space Administration, 1996.

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United States. National Aeronautics and Space Administration., ed. Torsional buckling tests of a simulated solar array: A final report, grant no. NAG5-2924, June 1, 1995-August 31, 1996. Charlottesville, VA: School of Engineering & Applied Science, University of Virginia, 1996.

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Heck, Leanne Renee. Evaluation of the torsion test for determining the shear strength of structural lumber. 1997.

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Evaluation of the Edge Crack Torsion (ECT) test for mode III interlaminar fracture toughness of laminated composites. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1996.

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Book chapters on the topic "Torsion test"

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Dantas, M. A., R. J. C. Carbas, A. M. Lopes, C. M. da Silva, E. A. S. Marques, and L. F. M. da Silva. "Novel Torsion Machine to Test Adhesive Joints." In Lecture Notes in Mechanical Engineering, 31–56. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6767-4_3.

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Nugues, Michel. "Torsion Test Benches: Instrumentation and Experimental Results." In Mechanical Characterization of Materials and Wave Dispersion, 209–53. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118621264.ch9.

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Marimuthu, Karuppasamy Pandian, Kwangmin Lee, and Hyungyil Lee. "Numerical Simulation of Crack Propagation in Double Torsion Test." In Advanced Manufacturing and Materials Science, 359–67. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76276-0_36.

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Liu, Xin Ling, Wei Fang Zhang, and Chun Hu Tao. "Quantitative Analysis of Transmission Shafts after Torsion Fatigue Test." In Key Engineering Materials, 2790–93. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-456-1.2790.

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Zhang, Chong, Yanshan Lou, Till Clausmeyer, and A. Erman Tekkaya. "Cyclic Loading Tests Based on the In-Plane Torsion Test for Sheet Metal." In Forming the Future, 635–45. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75381-8_52.

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Völgyesi, L., and Z. Ultmann. "Reconstruction of a Torsion Balance and the Results of the Test Measurements." In Geodesy for Planet Earth, 281–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20338-1_34.

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Gasiak, Grzegorz, and Grzegorz Robak. "Test Stand for Analysis of Fatigue Crack Propagation under Bending with Torsion." In Solid State Phenomena, 90–93. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-60-4.90.

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Du, Fen, Jy-An Wang, and Ting Tan. "Study on Fracture of Fiber-Reinforced Polymeric Composites Using Spiral Notch Torsion Test." In Lecture Notes in Civil Engineering, 151–65. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9121-1_12.

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Parsons, B. L., J. B. Snellen, and D. B. Muggeridge. "The Double Torsion Test Applied to Fine Grained Freshwater Columnar Ice, and Sea Ice." In Mechanics of Creep Brittle Materials 1, 188–200. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1117-8_14.

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Xu, Binbin. "Numerical analysis of a suitable number of rigid ribs in the hollow torsion test." In Advances in Energy Science and Equipment Engineering II, 207–10. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315116167-42.

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Conference papers on the topic "Torsion test"

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Kisker, Erhard. "A3.4 - A Novel Torsion Sensor." In SENSOR+TEST Conferences 2009. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2009. http://dx.doi.org/10.5162/sensor09/v1/a3.4.

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Maia Filho, W. C., M. Brizoux, H. Fremont, and Y. Danto. "Solder Joint Loading Conditions under Torsion Test." In Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems. Proceedings of EuroSimE 2006. IEEE, 2006. http://dx.doi.org/10.1109/esime.2006.1644009.

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Nor, M. K. Mohd, C. S. Ho, and N. Ma’at. "Torsion vehicle model test for automotive vehicle." In 7TH INTERNATIONAL CONFERENCE ON MECHANICAL AND MANUFACTURING ENGINEERING: Proceedings of the 7th International Conference on Mechanical and Manufacturing Engineering, Sustainable Energy Towards Global Synergy. Author(s), 2017. http://dx.doi.org/10.1063/1.4981156.

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HECKEL, B. R. "TORSION BALANCE TEST OF LORENTZ SYMMETRY VIOLATION." In Proceedings of the Third Meeting. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812702173_0016.

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MacDonald, Noel C. "MEMS torsion: mirrors, nanoprobes, and failure (Abstract Only)." In Design, Test, Integration, and Packaging of MEMS/MOEMS 2001, edited by Bernard Courtois, Jean Michel Karam, Steven P. Levitan, Karen W. Markus, Andrew A. O. Tay, and James A. Walker. SPIE, 2001. http://dx.doi.org/10.1117/12.425363.

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Pol, P. Santamarina. "Dynamic and Static Design of Engine Test Benches." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0306.

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Abstract The elastic mechanical strength of the large and medium reciprocating engine test benches, is calculated for vertical and horizontal bendings and for torsion. The dynamic loads - horizontal vibrating forces and vertical vibrating couples (bending and torsion) and horizontal vibrating couple,- and the static loads, - distributed weight of the bench itself and the machinery and the motor torque (torsion), - are analyzed. It is pointed out that the bench body of reinforced concrete is submitted to bending moments and shearing forces and to torsion couples. This paper is the continuation of the paper “Dynamic Loads in Engine Test Benches” in 12th Biennial ASME Conference on Mechanical Vibration and Noise.
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Bayles, Robert A., R. K. Singh Raman, Steven P. Knight, and Jy-An Wang. "Evaluating Stress-Corrosion Cracking Susceptibility Using a Torsion Test." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71782.

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A torsion test has been devised that provides for plane strain constraint in small specimens during fracture toughness testing. This method has been extended for stress-corrosion cracking and a simple torsion load frame has been built to provide for step loading of the specimens. This paper describes using the torsion technique to measure KISCC for aluminum alloy 7075 having two thermo-mechanical treatments.
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Dongmei Yuan, Qiang Liang, and Xihong Zou. "Design on torsion test-bed of automobile drive shaft." In 2011 Second International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2011. http://dx.doi.org/10.1109/mace.2011.5987155.

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Cui, Guo-hua, Feng Xu, Jian Liu, and Hongjuan Hou. "Fatigue Simulation of Automobile Torsion Beam Based on Road Test." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86429.

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For vehicle structural fatigue life issues considered in the design, fatigue analysis of key parts of the vehicle based on road test and CAE (Computer Aided Engineering) simulation techniques is presented. The rear torsion beam of a vehicle can be used as an example. Firstly, the unit load stress field is calculated by the principle of inertia release after the establishment of the torsion beam finite element model; Then, establishing vehicle rigid coupling model, and making six-component test site collection wheel center as a multi-body simulation input, torsion beam rear obtain the required load spectrum of fatigue analysis; The ground test data is provided for verifying the reliability of the model and the modified model parameters; Finally, Stress influence coefficient method is used for the torsion beam fatigue life prediction. What’s more, simulation results are compared with the road test results. The results show that this method can ensure the accuracy of the finite element model for fatigue analysis and boundary conditions, so that the fatigue life of the torsion beam rear car simulation analysis is more accurate. Provides a theoretical basis for fatigue analysis based on the structural design and Improvement of the rear torsion beam of vehicle. The method is also applicable to the fatigue analysis of other vehicle parts.
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Brenner, Werner, Gh Haddad, H. Rennhofer, M. Rennhofer, Aleksandar Vujanic, and Gordana Popovic. "New types of silicon torsion microspring and their characterization." In Symposium on Design, Test, Integration, and Packaging of MEMS/MOEMS, edited by Bernard Courtois, Selden B. Crary, Kaigham J. Gabriel, Jean Michel Karam, Karen W. Markus, and Andrew A. O. Tay. SPIE, 2000. http://dx.doi.org/10.1117/12.382305.

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Reports on the topic "Torsion test"

1

Burns, Timothy J. A mechanism for shear band formation in the high strain rate torsion test. Gaithersburg, MD: National Institute of Standards and Technology, 1989. http://dx.doi.org/10.6028/nist.ir.89-4121.

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Wang, Jy-An John. Fracture Toughness Evaluation for Spent Nuclear Fuel Clad Systems Using Spiral Notch Torsion Fracture Toughness Test. Office of Scientific and Technical Information (OSTI), June 2019. http://dx.doi.org/10.2172/1530074.

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Wang, Jy-An John, Ting Tan, Hao Jiang, Wei Zhang, and Zhili Feng. Developing Fatigue Pre-crack Procedure to Evaluate Fracture Toughness of Pipeline Steels Using Spiral Notch Torsion Test. Office of Scientific and Technical Information (OSTI), October 2012. http://dx.doi.org/10.2172/1055086.

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Wang, Jy-An John. Fracture Toughness Evaluation for Sandia Mock-up Stainless Steel Canister Weldment Using Spiral Notch Torsion Fracture Toughness Test. Office of Scientific and Technical Information (OSTI), March 2019. http://dx.doi.org/10.2172/1502533.

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EFFICIENCY OF DIFFERENT CONNECTIONS ON THE BEHAVIOUR OF COLD-FORMED SINGLE-ANGLE STEEL MEMBERS CONNECTED THROUGH ONE LEGUNDER AXIAL LOADING. The Hong Kong Institute of Steel Construction, September 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.10.

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A detailed experimental program was performed using 36 cold-formed steel (CFS) single-angle column members attached by one leg was investigated subjected to axial compression loads. The key purpose of this research is to investigate the effect of slenderness ratio and different connection types on the load-carrying capacity of CFS angle sections under axial compression. The parameters investigated via the test program includes (a) angle sections with and without lipped profile, (b) sectional thicknesses (2 mm and 3mm), (c) slenderness ratios (λ = 20, 50, 80) from short to slender columns, and (d) type of connections i.e. two-bolt, three-bolt and welded connections. Results shown that the angle sections had a significant reduction in the load-carrying capacity when the slenderness ratio was increased from 20 to 80. Moreover, the mode of failure for short columns was changed from local buckling mode to combined local and flexural buckling for intermediate columns (λ = 50) and torsional-flexural buckling mode for long columns (λ = 80). Also, a detailed analytical study was carried out comparing the predictability of existing equations from different standards for angle sections under axial compression.
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