A Hollow Cylinder Torsional Shear Device to Explore Behavior of Soils Subjected to Complex Rotation of Principal Stresses

2021 ◽  
Vol 44 (6) ◽  
pp. 20190394
Author(s):  
R. Prasanna ◽  
S. Sivathayalayan
Keyword(s):  
Hollow Cylinder ◽  
Principal Stresses ◽  
Complex Rotation ◽  
Torsional Shear

scholarly journals Development of Automatic Hollow Cylinder Torsional Shear Apparatus and Its Application to Strain Controlled Test.

1994 ◽  
pp. 329-332
Author(s):  
Yukio Nakata ◽  
Osami Yamamoto ◽  
Noriyuki Yasufuku ◽  
Hidekazu Murata ◽  
Masayuki Hyodo
Keyword(s):  
Hollow Cylinder ◽  
Torsional Shear

Effect of Specimen Size on Quasi-Elastic Properties of Toyoura Sand in Hollow Cylinder Triaxial and Torsional Shear Tests

2008 ◽  
Vol 31 (2) ◽  
pp. 100022
Author(s):  
L. D. Suits ◽  
T. C. Sheahan ◽  
Nguyen HongNam ◽  
Junichi Koseki ◽  
Takeshi Sato
Keyword(s):  
Elastic Properties ◽  
Hollow Cylinder ◽  
Specimen Size ◽  
Shear Tests ◽  
Torsional Shear ◽  
Toyoura Sand

Axial-Torsional Testing System for Clay with Local Strain Measurement

1998 ◽  
Vol 1614 (1) ◽  
pp. 24-32
Author(s):  
Antonio E. Abrantes ◽  
Dayakar Penumadu
Keyword(s):  
Hollow Cylinder ◽  
Local Strain ◽  
Confining Pressure ◽  
Cohesive Soil ◽  
Local Deformation ◽  
Testing System ◽  
Test Results ◽  
Torsional Loading ◽  
Torsional Shear ◽  
Torsional Testing

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 implementing software control, procedures are described for performing K o consolidation with an electropneumatic transducer in conjunction with an automated volume change device. An optical technique developed by the authors for measuring local strains under axial-torsional loading is also described. Initial test results associated with an undrained constant rate of strain axial and pure torsional shear testing on isotropically consolidated hollow-cylinder kaolin clay are presented. Aspects associated with repeatability are discussed. The test results are being used to evaluate the influence of the inclination of major principal stress on the shear strength and pore pressure behavior of isotropically consolidated clay. A qualitative discussion related to global versus local deformation patterns of hollow-cylinder specimens under axial and torsional loading is also presented.

Static liquefaction of sands under multiaxial loading

1998 ◽  
Vol 35 (2) ◽  
pp. 273-283 ◽  
Author(s):  
M Uthayakumar ◽  
Y P Vaid
Keyword(s):  
Steady State ◽  
Hollow Cylinder ◽  
Void Ratio ◽  
Friction Angle ◽  
Stress Path ◽  
Shear Loading ◽  
Multiaxial Loading ◽  
Fundamental Study ◽  
Torsional Shear ◽  
Loading Direction

A fundamental study of the undrained behaviour of sands under multiaxial loading is presented. The investigation was carried out using Fraser River and Syncrude sands in a hollow cylinder torsional shear device. Shear loading was carried out under strain control to capture the postpeak strain-softening characteristics of loose sands. It is shown that the undrained response of loose sands is highly dependent on the loading direction. The friction angle mobilized at phase transformation and steady state is a unique material property, independent of the mode of loading, direction of principal stress and initial consolidation stress, and void ratio state. There is no unique relationship between steady state strength and void ratio which is independent of stress path and the level of initial confining stress.Key words: anisotropy, hollow cylinder torsional shear, liquefaction, sand, simple shear, triaxial.

scholarly journals Undrained Plane Strain Shear Tests on Saturated Sand Using a Hollow Cylinder Torsional Shear Apparatus

1999 ◽  
Vol 39 (2) ◽  
pp. 131-136 ◽  
Author(s):  
Mitsutoshi Yoshimine ◽  
Recep Özay ◽  
Atila Sezen ◽  
Atilla Ansal
Keyword(s):  
Plane Strain ◽  
Hollow Cylinder ◽  
Saturated Sand ◽  
Shear Tests ◽  
Torsional Shear
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