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Journal articles on the topic 'Torsional ring shear test'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Ishikawa, Tatsuya, Etsuo Sekine, and Seiichi Miura. "Cyclic deformation of granular material subjected to moving-wheel loads." Canadian Geotechnical Journal 48, no. 5 (2011): 691–703. http://dx.doi.org/10.1139/t10-099.

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This paper describes a new testing method to examine the mechanical behavior of railroad ballast subjected to repeated train passages on ballasted track. Two types of cyclic loading tests, namely a single-point loading test and a moving-wheel loading test, were performed with small-scale models of ballasted track. Next, a “multi-ring shear apparatus” was developed as a type of torsional simple shear apparatus, and the applicability of a newly proposed multi-ring shear test to an element test of railroad ballast subjected to moving-wheel loads was examined by comparing the results of multi-ring

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Yuan, Zhengxin, and Gang Wang. "A new stacked ring torsional shear apparatus for multiple liquefaction test of sands." Japanese Geotechnical Society Special Publication 10, no. 37 (2024): 1407–12. http://dx.doi.org/10.3208/jgssp.v10.os-26-03.

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3

Sobolev, E. S., and D. S. Morev. "Comparative analysis of stability of embankment on the basis of torsional ring shear test." IOP Conference Series: Materials Science and Engineering 687 (December 10, 2019): 044038. http://dx.doi.org/10.1088/1757-899x/687/4/044038.

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4

Park, Hyeon Woo, Jae W. Park, and Won Byong Yoon. "The Relationship between Penetration, Tension, and Torsion for the Fracture of Surimi Gels: Application of Digital Image Correlation (DIC)." Processes 11, no. 1 (2023): 265. http://dx.doi.org/10.3390/pr11010265.

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A standardized method to evaluate the material properties of surimi gels has to be updated because of the lack of accuracy and the repeatability of data obtained from conventional ways. To investigate the relationships between the different texture measurement methods used in surimi gels, 250 batches of different surimi gels were used. The textural properties of surimi gels made with or without whey protein concentrate (SG-WP), potato starch (SG-PS), or dried egg white (SG-EW) were measured under torsion, tensile, and penetration tests. The correlation between the textural properties related t

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Tan, S. A., S. H. Chew, and W. K. Wong. "Sand–geotextile interface shear strength by torsional ring shear tests." Geotextiles and Geomembranes 16, no. 3 (1998): 161–74. http://dx.doi.org/10.1016/s0266-1144(98)00007-7.

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6

Stark, Timothy D., Jack A. Cadigan, and Navid H. Jafari. "Drained Shear Displacement Rates in Fully Softened Strength Torsional Ring Shear Testing." Geotechnical Testing Journal 44, no. 5 (2020): 20200117. http://dx.doi.org/10.1520/gtj20200117.

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Stark, Timothy D., and Alan R. Poeppel. "Landfill Liner Interface Strengths from Torsional‐Ring‐Shear Tests." Journal of Geotechnical Engineering 120, no. 3 (1994): 597–615. http://dx.doi.org/10.1061/(asce)0733-9410(1994)120:3(597).

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8

Chen, Jie, Weijie Chen, Chaohui Deng, Runjian Deng, Mingqing Xiao, and Dong Su. "Study on Torsional Shear Deformation Characteristics of Segment Joints Under the Torque Induced by Tunnel Boring Machine Construction." Applied Sciences 15, no. 3 (2025): 1104. https://doi.org/10.3390/app15031104.

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During the excavation process of a Tunnel Boring Machine (TBM), the cutterhead exerts significant torque on the tunnel structure, which potentially causes torsional shear deformation at segment ring joints. Thus, examining the characteristics of torsional shear deformation and the shear-bearing performance of segment joints under construction torque is crucial for the design and safety of segment structures and the construction of TBM tunnels. To achieve this, a refined finite element model of the segment joints was developed to study their torsional shear resistance under varying axial forces

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Xie, Jun, and Yougang Yang. "Numerical Simulation Virtual Test of Torsion Shear for Asphalt Mixture." Advances in Materials Science and Engineering 2019 (September 4, 2019): 1–21. http://dx.doi.org/10.1155/2019/8709849.

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In order to analyze the torsional shear process of asphalt mixtures in a microscopic view, the numerical simulation of a torsional shear test of an asphalt mixture was carried out by discrete element method. Based on the defects of existing algorithms, the method of random reconstruction of the existing 3D model of the asphalt mixture was improved, and a new reconstruction method was proposed. A 3D numerical model of the asphalt mixture contained irregular-shaped coarse aggregate, mineral gradation, and asphalt mortar; furthermore, the particle algorithm established the air void distribution.

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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 (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 c

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11

Osman, Muhsin, Trevor John Cloete, and Ernesto Bram Ismail. "Extending the annular in-plane torsional shear test specimen to applications at high strain rates." EPJ Web of Conferences 250 (2021): 01004. http://dx.doi.org/10.1051/epjconf/202125001004.

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In-plane torsional shear testing is a well-established material testing technique in the metal forming community. The corresponding specimen is designed to be machined from sheet metal with a continuous annular shear zone intended to deform in simple shear. Consequently, there are no geometric discontinuities or “edge-effects” to induce volumetric changes or instabilities with the result that large true plastic strains up to 1.0 can be achieved. This paper presents an extension of the in-plane torsional shear test to the dynamic regime. Dynamic experiments were performed using a torsional spli

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Xie, Jun, Yiqun Zhan, and Yifan Wang. "Analysis of a Methodology for Torsional Test under Normal Stress and Shear Performance for Asphalt Mixtures." Advances in Civil Engineering 2019 (December 10, 2019): 1–14. http://dx.doi.org/10.1155/2019/7319379.

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Insufficient shear performance in an asphalt mixture is a primary reason for rutting deformation and pavement surface longitudinal cracking. Thus, it is important to choose a suitable shear test method to evaluate shear performance in an asphalt mixture. Current testing methods mainly evaluate the bonding strength between asphalt layers, and the current shear test method for an asphalt mixture is disadvantaged by high equipment cost and complicated procedures. Our study proposes a torsional test method under normal stress condition, and evaluation was done for four types of asphalt mixture und

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Knodel, PC, TD Stark, and JJ Vettel. "Bromhead Ring Shear Test Procedure." Geotechnical Testing Journal 15, no. 1 (1992): 24. http://dx.doi.org/10.1520/gtj10221j.

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Xie, Jun, and Yifan Wang. "Comparative Study on Torsional Shear and Triaxial Test of Asphalt Mixtures." Advances in Civil Engineering 2019 (June 9, 2019): 1–8. http://dx.doi.org/10.1155/2019/1856298.

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In order to verify the reliability and effectiveness of the torsional shear test method, a comparative study of the torsional test under normal stress conditions and triaxial test was carried out with two different asphalt types (unmodified asphalt and SBS-modified asphalt) for asphalt mixtures of AC-13 and AC-20 at three temperatures of 20°C, 40°C, and 60°C. The results showed that the crack spreading routine and the spreading angle were different between the two test methods. The cohesion of the torsional test was slightly larger than that of the triaxial test for different mixtures, asphalt

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Yasuda, Nario, and Norihisa Matsumoto. "Comparisons of deformation characteristics of rockfill materials using monotonic and cyclic loading laboratory tests and in situ tests." Canadian Geotechnical Journal 31, no. 2 (1994): 162–74. http://dx.doi.org/10.1139/t94-022.

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The deformation characteristics of rockfill materials at very small strains were investigated by comparing the results of monotonic and cyclic loading laboratory tests with geophysical P- and S-wave logging data from the field. Using a precision linear variable differential transformer for displacement, the elastic moduli of rockfill materials at very small strains were measured in monotonic and cyclic loading triaxial tests. The laboratory test results agreed well with the field results. The shear moduli of rockfill materials from both a monotonic loading torsional simple shear test and a cyc

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Qiu, Zexu, Rongchuang Chen, Changbin Wu, Dingbang Liu, and Xingang Gan. "Optimized design of silicone oil torsional damper for diesel generator." Journal of Physics: Conference Series 2790, no. 1 (2024): 012007. http://dx.doi.org/10.1088/1742-6596/2790/1/012007.

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Abstract Due to the high cylinder pressure and high-performance requirements, the silicone oil damper of an inline six-cylinder diesel generator needs to be optimized to reduce the crankshaft stress. The centralized mass method was used to simplify the crankshaft system. A multi-body dynamic model was established, and the crankshaft stress and torsional vibration amplitude were simulated. The results show that the excessive shear stress at generator crank pin 5 is due to the resonance between the first-order intrinsic frequency of the shaft system and the 3rd harmonic torsional vibration. The

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Faris, Inas H., Juan Melchor, Antonio Callejas, Jorge Torres, and Guillermo Rus. "Viscoelastic Biomarkers of Ex Vivo Liver Samples via Torsional Wave Elastography." Diagnostics 10, no. 2 (2020): 111. http://dx.doi.org/10.3390/diagnostics10020111.

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The clinical ultrasound community demands mechanisms to obtain the viscoelastic biomarkers of soft tissue in order to quantify the tissue condition and to be able to track its consistency. Torsional Wave Elastography (TWE) is an emerging technique proposed for interrogating soft tissue mechanical viscoelastic constants. Torsional waves are a particular configuration of shear waves, which propagate asymmetrically in-depth and are radially transmitted by a disc and received by a ring. This configuration is shown to be particularly efficient in minimizing spurious p-waves components and is sensit

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Wang, Guangyuan, Yuhua Li, Jingyun Chen, Yiren Sun, Weiying Wang, and Yongjun Liu. "Experimental Study on Torsional Shear Testing of Asphalt Mixture." Applied Sciences 12, no. 23 (2022): 12242. http://dx.doi.org/10.3390/app122312242.

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In order to research investigations on the shear behavior of asphalt mixture, a new shear testing device is developed which can apply torque to a prismatic specimen. This test configuration incorporates a loading application and instrumentation systems to measure and record the response of these mixtures. The loading application can be subjected to individual or combined axial and torsional loads; in particular, the axial load can be dynamically controlled to remain constant. The paper first uses the mechanical theory to analyze the stress state of a prismatic specimen under a torsional load i

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Amulu, CP, and CA Ezeagu. "EXPERIMENTAL AND ANALYTICAL COMPARISON OF TORSION, BENDING MOMENT AND SHEAR FORCES IN REINFORCED CONCRETE BEAMS USING BS 8110, EURO CODE 2 AND ACI 318 PROVISIONS." Nigerian Journal of Technology 36, no. 3 (2017): 705–11. http://dx.doi.org/10.4314/njt.v36i3.7.

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This study investigated the effect of combined actions of torsional moments, bending moments and shear forces in reinforced concrete beams with concrete compressive strength of 30N/mm2.The ultimate torsional moments, bending moments, and shear forces of the beams were determined experimentally, through a simple test arrangement set-up on fifteen beam specimens grouped from BC1 to BC5, three beam specimens in each group. The combined loads were induced by loading the test beams at an eccentricity of Â from the beamâ€™s principal axis at the mid-span, using Computerized Universal Testing Machine

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Yoshihara, Hiroshi, Momoka Wakahara, Masahiro Yoshinobu, and Makoto Maruta. "Torsional Vibration Tests of Extruded Polystyrene with Improved Accuracy in Determining the Shear Modulus." Polymers 14, no. 6 (2022): 1148. http://dx.doi.org/10.3390/polym14061148.

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Recently, extruded polystyrene (XPS) foam has been used as a component of construction materials; therefore, it is important to characterize its mechanical properties, including shear modulus. Despite the importance, it is often difficult to determine the shear modulus accurately by using many of the conventional methods; therefore, it is desirable to establish another method to measure the shear modulus with a high accuracy. Among various methods, torsional vibration test is advantageous because it can be performed easily under the pure shear stress condition in the test sample and both the i

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21

Zhang, L. M., and L. G. Kong. "Centrifuge modeling of torsional response of piles in sand." Canadian Geotechnical Journal 43, no. 5 (2006): 500–515. http://dx.doi.org/10.1139/t06-020.

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Centrifuge model tests were performed to investigate the torsional behavior of a well-instrumented model pile jacked into loose and dense sand. The whole process of pile jacking, torsional loading, and pile extraction was conducted in-flight at 40g using a four-axis robotic manipulator. The torsional response at the pile head, distributions of torque and shaft friction along the pile shaft, torsional load transfer, and loading rate effects were studied. The shaft resistances along the pile during torsional loading, compression loading, and tension loading were compared. The shear stress loca

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22

Feng, R., and K. T. Ramesh. "The Rheology of Lubricants at High Shear Rates." Journal of Tribology 115, no. 4 (1993): 640–47. http://dx.doi.org/10.1115/1.2921688.

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A modified torsional Kolsky bar is used to shear a thin annular layer of lubricant held between concentric cylinders. The shear rates obtained range from 4 × 103 to 4 × 104 s−1; the duration of the shear pulse is about 400 microseconds. The shear stress history and the corresponding shear-rate history are deduced using standard torsional Kolsky bar techniques. This experimental technique provides the capability of measuring the shear stresses sustained by fluids at very high shear rates, while the short test duration ensures a minimal rise in temperature due to the associated shear heating. Re

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NAKAMURA, Kouichi, Hirofumi TOYOTA, Naoki SAKAI, and Tetsuya SHIMAUCHI. "EXPERIMENTAL STUDY ON MECCHANISM OF SHEAR FAILURE IN BOREHOLE TORSIONAL SHEAR TEST." Doboku Gakkai Ronbunshu, no. 764 (2004): 373–78. http://dx.doi.org/10.2208/jscej.2004.764_373.

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Possa, Desirè Coraça, Alfredo Petrauski, Mateus Couri Petrauski, Alessandra dos Santos, Sandra Maria Ferreira Couri Petrauski, and Débora Coraça Possa. "Mechanical performance of adhesive bonded joints with 1C-PUR adhesive at different angles." Revista Árvore 48, no. 1 (2024): 1–13. http://dx.doi.org/10.53661/1806-9088202448263800.

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Reforestation trees are an alternative to meet industrial needs, and one potential application is their use in prefabricated structures, such as glued laminated timber (glulam). This study aimed to evaluate the shear strength of Pinus sp. bonded joints made using a single-component polyurethane adhesive (1C-PUR). The joints were produced varying the angles between the wood fibers ranging from 0º to 90º and were tested subjected to shear under compression load and to shear under torsional load. The use of the Hankinson’s equation as an estimator of shear strength of glued joints and the percent

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25

Gang, Chen, Huang Xicheng, Chen Junhong, and Zhong Weizhou. "Numerical Simulation on the specimen dynamic plastic deformation behaviour in the torsional split Hopkinson bar test." EPJ Web of Conferences 183 (2018): 01020. http://dx.doi.org/10.1051/epjconf/201818301020.

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The torsional split Hopkinson bar (SHB) is an important method to study the dynamic shear behaviour and shear localization of materials under high strain rates. Different specimen sizes were used in literatures, and the size of the specimen might have an effect on the experimental results. Numerical simulation on torsional SHB tests was carried out with LS-DYNA. The strain signal on the incident and transmitted bars were obtained from the simulation just as the experiment. Then the numerical strain-stress relationship of the material was derived from the numerical strain signal using the exper

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Henke, R. "Selected Issues Regarding the Torsional Cylindrical Impulse Shear Test." Bulletin of the Seismological Society of America 93, no. 6 (2003): 2516–30. http://dx.doi.org/10.1785/0120030006.

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Mao, Yana, and Shizhong Liu. "Calculation of Shear Stress in New-Type Composite Box Girder with Corrugated Steel Webs under Restrained Torsion." Buildings 14, no. 7 (2024): 2023. http://dx.doi.org/10.3390/buildings14072023.

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The objective of this paper is to outline a method for the systematic analysis and calculation of the constrained torsional shear stress in corrugated steel web composite box girders. Initially, leveraging Umansky’s secondary theory, the calculation formula for the constrained torsional shear stress within the composite girder is derived from the conditions of cross-sectional torque equilibrium and continuity in warping displacement. Subsequently, a torsion test is conducted using a scaled model of an actual girder. Finally, the constrained torsional shear stress of the corrugated steel web co

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Abrantes, Antonio E., and Dayakar Penumadu. "Axial-Torsional Testing System for Clay with Local Strain Measurement." Transportation Research Record: Journal of the Transportation Research Board 1614, no. 1 (1998): 24–32. http://dx.doi.org/10.3141/1614-04.

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An axial-torsional testing system, consisting of an MTS loading frame (9.8 kN/113 N-m) and TestWare-SX control, was developed for evaluating the multiaxial behavior of cohesive soil. The capabilities of the testing system include automated control of three axes (axial load/displacement, torque/rotation, and confining pressure) under static and dynamic conditions. Description of a custom-designed triaxial-torsional shear cell developed for this study is presented. Uniform and reproducible specimens (hollow and full cylinder) were obtained with a slurry consolidation technique. As an example for

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Ju, Hyunjin, Chanseo Jung, and Hae-Chang Cho. "Strength Model for Prestressed Concrete Beams Subjected to Pure Torsion." Buildings 14, no. 9 (2024): 2690. http://dx.doi.org/10.3390/buildings14092690.

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A torsional strength model for prestressed concrete beams was proposed considering the initial crack angle, principal stress angle, and longitudinal strain, which are affected by the axial stress induced by the effective prestress. The use of the torsional effective thickness was also proposed to calculate the torsional strength of prestressed concrete beams by considering the effect of prestress. The shear element in the torsional member was simplified under the assumption that the principal tensile stress and principal compressive strain were negligible in the ultimate state. The torsional s

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Sarkis Fernandez, Ana Isabel, Timothy J. Sullivan, Emanuele Brunesi, and Roberto Nascimbene. "Assessment of the torsional behaviour of hollow core slabs." Bulletin of the New Zealand Society for Earthquake Engineering 56, no. 2 (2023): 104–14. http://dx.doi.org/10.5459/bnzsee.1572.

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There are many applications in buildings in which precast pre-stressed hollow-core (HC) slabs are subjected to shear, torsion, or combined shear and torsion. Nonetheless, extruded HC units contain no transverse reinforcement, being inherently vulnerable to brittle failure modes due to shear and torsional actions. In previous work by the authors, a finite element (FE) modelling approach for HC units failing in shear was developed and validated against experimental test data. This paper aims to extend the applicability of the proposed FE approach to help improve the understanding of the torsiona

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Fleischman, T. S., V. Kerchman, and T. G. Ebbott. "Torsional Crack Growth Test to Simulate Belt Edge Deformation." Tire Science and Technology 29, no. 2 (2001): 91–107. http://dx.doi.org/10.2346/1.2135234.

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Abstract The study of fatigue crack growth resistance for tire belt compounds is motivated by the high deformation cycles inherent in the belt edge region of radial tires. To improve the understanding of fatigue in this region, a test has been developed to simulate crack growth in shear (mode III). A rubber disk with a circumferential pre-crack is tested in cyclic torsion to simulate belt edge interlaminar shear cycles. Theoretical, numerical [finite element analysis (FEA)] and experimental methods have been employed to investigate and quantify the response. A recent improvement to the analysi

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Yoshida, Tsutomu, Shinichi Matsui, Mitsuo Hoshino, and Masaru Sakata. "Measurement of Shear Moduli for Anisotropic Materials by Torsional Test." Proceedings of the 1992 Annual Meeting of JSME/MMD 2003 (2003): 885–86. http://dx.doi.org/10.1299/jsmezairiki.2003.0_885.

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Li, Bo, Lin Guo, and Feng-shou Zhang. "Macro-micro investigation of granular materials in torsional shear test." Journal of Central South University 21, no. 7 (2014): 2950–61. http://dx.doi.org/10.1007/s11771-014-2262-3.

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Mohd Puaad, Muhammad Bazli Faliq, Zakiah Ahmad, Norshariza Mohamad Bhkari, et al. "DEVELOPMENT OF A CORRELATION MODEL FOR TORSIONAL SHEAR MODULUS PROPERTIES BETWEEN STRUCTURAL SIZE SPECIMENS BASED ON EN 384:2016 AND SMALL CLEAR SPECIMENS (MS544: PART 2)." Jurnal Teknologi (Sciences & Engineering) 86, no. 6 (2024): 39–48. http://dx.doi.org/10.11113/jurnalteknologi.v86.20819.

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In timber design, the shear modulus of beams is crucial for ensuring torsional stability and minimizing vibrational issues. Traditionally, the ratio of modulus of elasticity (E) to shear modulus (G) is assumed to be 16:1. However, bending tests often combine flexural and shear stresses, making it difficult to assess pure shear properties. The British Standard BS EN 408:2012 now recommends the torsion test as the preferred method for determining the shear modulus of structural-size timber and timber composites. This method has received limited attention in Malaysia. This study investigates the

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Fürll, F., F. Klein, M. Götze, T. Betz, and S. Marx. "Experimental study on the joint load-bearing behaviour of segmented concrete towers under combined loading." Journal of Physics: Conference Series 2767, no. 4 (2024): 042009. http://dx.doi.org/10.1088/1742-6596/2767/4/042009.

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Abstract Hybrid towers have become increasingly established for tall wind turbines. The concrete part of these towers consists of several stacked circular ring segments. To reduce the amount of fabrication and erection effort, the joints between the segments are usually designed as dry ground joints. This paper presents experimental investigations aimed at determining the torsional load-bearing capacity of such dry ground concrete joints subjected to combined loading of prestressing, bending and torsion. Based on previous investigations, a test set-up consisting of three circular ring segments

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Schulze, Dietmar. "Round robin test on ring shear testers." Advanced Powder Technology 22, no. 2 (2011): 197–202. http://dx.doi.org/10.1016/j.apt.2010.10.015.

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Naidu, S. V., Carlos Green, Christopher Maxie, James D. Garber, and Gary A. Glass. "Surface Analysis of Shear Strength Tested Tungsten Carbide Thermal Spray Coatings+." Microscopy and Microanalysis 3, S2 (1997): 791–92. http://dx.doi.org/10.1017/s1431927600010849.

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Thermal spray processing has become an important powder-consolidation technique to yield new materials for extremes of temperature, radiation, wear, corrosion and mechanical stresses. High Velocity Oxy-Fuel (HVOF) spray coating process gives higher deposition densities and coating hardness; lower oxide content and porosity. The adhesive strength of thermal spray coatings is greatly effected by the interfacial impurities. The ring shear test method shown in Fig. 1 appears to give the most accurate results on shear adhesive strength. A typical ring shear test result of 88WC12Co 1/4" ring HVOF th

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Garbowski, Tomasz, Tomasz Gajewski, and Jakub Krzysztof Grabski. "Torsional and Transversal Stiffness of Orthotropic Sandwich Panels." Materials 13, no. 21 (2020): 5016. http://dx.doi.org/10.3390/ma13215016.

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In the present work, an analytical equation describing the plate torsion test taking into account the transverse shear stiffness in sandwich plates is derived and numerically validated. Transverse shear becomes an important component if the analyzed plate or shell is thick with respect to the in-plane dimensions and/or its core has significantly lower stiffness than the outer faces. The popular example of such a sandwich plate is a corrugated cardboard, widely used in the packaging industry. The flat layers of a corrugated board are usually made of thicker (stronger) material than that used fo

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Hattingh, D. G., M. N. James, Luca Susmel, and Roberto Tovo. "Fatigue Behaviour of Al 6082-T6 Friction Stir Welded Tubular Joints under Torsional Loading." Key Engineering Materials 627 (September 2014): 193–96. http://dx.doi.org/10.4028/www.scientific.net/kem.627.193.

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The aim of the present research is to investigate the fatigue behaviour of friction stir (FS) welded tubular joints in aluminium alloy subjected to torsional fatigue loading. To manufacture the samples which were tested, an MTS I-STIR process development system was equipped with a retracting tool specifically designed for these tubular welds. Al 6082-T6 FS welded samples were tested under cyclic torsion with a nominal shear stress ratio equal to-1 and 0. The test data show that, strictly speaking, the presence of non-zero mean shear stresses has a detrimental effect on the overall torsional fa

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Okada, Yasuhiko, Kyoji Sassa, and Hiroshi Fukuoka. "Undrained shear behaviour of sands subjected to large shear displacement and estimation of excess pore-pressure generation from drained ring shear tests." Canadian Geotechnical Journal 42, no. 3 (2005): 787–803. http://dx.doi.org/10.1139/t05-017.

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Undrained shear behaviour of fine silica and weathered granitic sand subjected to large shear displacement is examined. Parallel experiments using ring shear and the triaxial compression tests on soil specimens through a wide range of initial void ratios were conducted to investigate undrained shear strength as the key factor in the flow-like motion of landslides. The steady-state undrained shear strengths achieved in ring shear tests were, in general, smaller than those in the triaxial compression tests, probably because of the excess pore-pressure generation by grain crushing within the shea

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Wang, Xiaopei, Deng’an Cai, Chao Li, Fangzhou Lu, Yu Wang, and Guangming Zhou. "Failure analysis of three-dimensional braided composite tubes under torsional load: Experimental study." Journal of Reinforced Plastics and Composites 36, no. 12 (2017): 878–88. http://dx.doi.org/10.1177/0731684417694255.

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An experimental study on the effects of braided processes on the torsional strength, torsional modulus and failure modes of the three-dimensional braided composite tubes are presented. Based on the movement of carries, the yarn traces of three-dimensional braided composite tubes are analyzed systematically. Four different three-dimensional braided composite tubes are formed by resin transfer molding, and a number of torsional tests are performed respectively using a special test device. It is found that the torsional strength of three-dimensional five-directional braided composite tubes is hig

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Sheikh-Ahmad, J. Y., and J. A. Bailey. "Flow Instability in the Torsional Straining of Commercially Pure Titanium." Journal of Engineering Materials and Technology 117, no. 3 (1995): 255–59. http://dx.doi.org/10.1115/1.2804537.

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Analysis of the phenomenon of adiabatic flow instability during the torsional straining of CP titanium has been made and the instability shear strain predicted. The constitutive equation for isothermal deformation of CP titanium was integrated over the total shear strain received by the material. Thermal softening caused by adiabatic heating was calculated and used to derive the adiabatic shear stress-shear strain curves. The instability shear strain was determined as the value that corresponds to zero slope of these curves. The effect of strain rate, temperature, and specific heat on the inst

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Putra, Dimas Endrawan, Daniel Dewanto Rumani, Hadi Prayitno, Muhamad Khoirul Anam, and Miftahul Asri Widiastuti Ramadhani. "Evaluation of the Tracker Tool on the Cessna 172s Throttle Using Simulation." International Journal of Educational Research Excellence (IJERE) 3, no. 2 (2024): 636–39. http://dx.doi.org/10.55299/ijere.v3i2.983.

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The throttle is a device on the Cessna 172s training aircraft which is used to increase the amount of air used during combustion. To help overcome difficult throttle adjustments, special tools are needed in the form of a tracker. The existence of representative and useful tools to make things easier and save costs is really needed, therefore research to create work aids currently needs to be increased. Tool testing is also very important in knowing the maximum working point of the tracker tool which can determine properties such as shear elastic modulus, torsional yield strength and rupture mo

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Xu, Jianchao, Bo Diao, Quanquan Guo, Yinghua Ye, Y. L. Mo, and Tianmin Zhou. "Parametric Study on Mixed Torsional Behavior of U-Shaped Thin-Walled RC Girders." Advances in Civil Engineering 2018 (November 15, 2018): 1–18. http://dx.doi.org/10.1155/2018/3497390.

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Nowadays, U-shaped thin-walled concrete girders have been widely applied in the urban construction of rail viaducts in China as well as worldwide. However, the mixed torsional behaviors of these structures are not well understood. In this paper, the mixed torsional behaviors of the U-shaped thin-walled RC girders are theoretically analyzed, and a method predicting failure modes and ultimate torques is proposed. Nonlinear FE models based on ABAQUS to simulate the mixed torsional behaviors are built and calibrated with the test results. Parametric studies considering three crucial parameters (bo

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Keramatikerman, Mahdi, Amin Chegenizadeh, Hamid Nikraz, and Yuksel Yilmaz. "Mechanical Behaviour of Atrazine-Contaminated Clay." Applied Sciences 10, no. 7 (2020): 2457. http://dx.doi.org/10.3390/app10072457.

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Atrazine (ATZ) is one of the most heavily used types of herbicide that is currently applied in the agricultural industry all around the world, especially Australia and the United States. This study investigates the effect of atrazine contamination on the mechanical characteristics of two Western Australian natural clays and one commercial type of clay. A series of the Atterberg limit, compaction, and torsional ring shear tests were performed on the clays contaminated with 2, 4, and 6% atrazine content. The results showed that increasing the atrazine content led to a reduction in both liquid li

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Altun, S., A. B. Göktepe, A. M. Ansal, and C. Akgüner. "Simulation of torsional shear test results with neuro-fuzzy control system." Soil Dynamics and Earthquake Engineering 29, no. 2 (2009): 253–60. http://dx.doi.org/10.1016/j.soildyn.2008.01.008.

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Ayers, P. D. "Utilizing the torsional shear test to determine soil strength-properties relationships." Soil and Tillage Research 10, no. 4 (1987): 373–80. http://dx.doi.org/10.1016/0167-1987(87)90025-0.

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Kumar, Jyant, and C. RI Clayton. "Effect of sample torsional stiffness on resonant column test results." Canadian Geotechnical Journal 44, no. 2 (2007): 221–30. http://dx.doi.org/10.1139/t06-099.

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A number of resonant column tests were conducted in torsion on aluminium cylindrical bars. By changing the length to diameter ratio of these specimens, the resonant frequency was varied between 52 and 332 Hz. The values of the shear wave velocity (VS) and damping ratio (D) determined from these tests were found to remain acceptable up to a resonant frequency of about 175 Hz. Thereafter, with an increase in the torsional stiffness of the specimen, there was a significant decrease in VS of up to 32.2%, corresponding to a resonant frequency of 332 Hz, and a considerable increase in the damping wa

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Chen, Rongchuang, Zexu Qiu, Changbin Wu, and Xingang Gan. "Study on heat dissipation of torsional vibration damper for engine crankshaft." Journal of Physics: Conference Series 2790, no. 1 (2024): 012009. http://dx.doi.org/10.1088/1742-6596/2790/1/012009.

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Abstract High temperatures in torsional vibration dampers can cause silicone oil to fail, increasing crankshaft vibration and shortening component fatigue life. Accurate prediction of the damper temperature field is key to the manufacture of highly reliable torsional vibration dampers. This study establishes the relationship between temperature, torsional vibration amplitude, silicone oil viscosity, rotational speed, housing and inertia ring clearance, and heat generation power based on Comsol. A bench test was carried out on a 6-cylinder inline diesel engine. The simulated temperature profile

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Gao, Pu, Hui Liu, Changle Xiang, Pengfei Yan, and Taha Mahmoud. "A new magnetorheological elastomer torsional vibration absorber: structural design and performance test." Mechanical Sciences 12, no. 1 (2021): 321–32. http://dx.doi.org/10.5194/ms-12-321-2021.

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Abstract. The semi-active torsional vibration absorber can effectively reduce the torsional vibration of the power-train system. In this paper, a new type of variable stiffness torsional vibration absorber with a magnetorheological elastomer (MRE) as an intelligent controlling element is designed, and the modal analysis, frequency-tracking scheme, and damping effects have been studied. A transient dynamic simulation is utilized to validate the rationality of the mechanical structure, the magnetic field parameters of the absorber are matched, and the magnetic circuit simulation analysis and the

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