Strain Increment and Stress Directions in Torsion Shear Tests
Publication: Journal of Geotechnical Engineering
Volume 115, Issue 10
Abstract
The directions of the major principal strain increment, stress, and stress increment during rotation of the principal stress axes at any stress level are studied for ‐consolidated clay using a torsion shear apparatus with individual control of the vertical normal stress, the confining pressure, and the shear stress on hollow cylinder specimens under undrained and drained conditions. The torsion shear tests are performed along predetermined stress‐paths, which are chosen to cover the full range of rotation of principal stress axes from 0° to 90° relative to vertical. The test results indicate that the major principal strain increment directions coincide with the major principal stress directions at failure. The directions of major principal strain increment coincide with the directions of major principal stress increment at low stress levels and with the directions of major principal stress at higher stress levels. This indicates that the behavior of clay gradually changes from elastic to plastic as the stress level is increased. Elasto‐plastic theory is therefore suitable for modeling the behavior of clay during rotation of principal stress axes.
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References
1.
Bishop, A. W., et al. (1971). “A new ring shear apparatus and its application to the measurement of residual strength.” Geotechnique, 21(4), 273–328.
2.
Bjerrum, L., and Landva, A. (1966). “Direct simple‐shear tests on a Norwegian quick clay.” Geotechnique, 16(1), 1–20.
3.
Bojanowski, W. (1970). “The study of the influence of intermediate principal stress on the strength of granular material.” Proc., 2nd Seminar on Soil Mech. and Found. Engrg., Lodz, Poland, 41–58.
4.
Broms, B. B., and Casbarian, A. O. (1965). “Effects of rotation of the principal stress axes and of the intermediate principal stress on shear strength.” Proc., 6th Int. Conf. on Soil Mech. and Found. Engrg., Montreal, Canada, I, 179–183.
5.
Hight, D. W., Gens, A., and Symes, M. J. (1983). “The development of a new hollow cylinder apparatus for investigating the effects of principal stress rotation in soils.” Geotechnique, 33(4), 355–383.
6.
Hong, W. P., and Lade, P. V. (1989). “Elasto‐plastic behavior of ‐consolidated clay in torsion shear tests.” Soils and Found., Tokyo, Japan, 29(2), 57–70.
7.
Ishibashi, I., and Sherif, M. A. (1974). “Soil liquefaction by torsional simple shear device.” J. Geotech. Engrg. Div., ASCE, 100(8), 871–888.
8.
Lade, P. V. (1975). “Torsion shear tests on cohesionless soil.” Proc., 5th Panamerican Conf. on Soil Mech. and Found. Engrg., Buenos Aires, Argentina, I, 117–127.
9.
Lade, P. V. (1976). “Interpretation of torsion shear tests on sand.” Proc., 2nd Int. Conf. on Numerical Methods in Geomech., Blacksburg, Va., I, 381–389.
10.
Lade, P. V. (1981). “Torsion shear apparatus for soil testing.” Laboratory Shear Strength of Soil, ASTM STP 740, R. N. Yong and F. C. Townsend, eds., American Society for Testing and Materials, Philadelphia, Pa., 145–163.
11.
Lade, P. V. (1984). “Failure criterion for frictional materials.” Mechanics of Engineering Materials, C. S. Desai and R. H. Gallagher, eds., John Wiley and Sons, New York, N.Y., 385–402.
12.
Lomize, G. M., et al. (1969). “Study on deformation and strength of soils under three‐dimensional state of stress.” Proc., 7th Int. Conf. on Soil Mech. and Found. Engrg., International Society for Soil Mechanics and Foundation Engineering, I, 257–265.
13.
Roscoe, K. H. (1953). “An apparatus for the application of simple shear to soil samples.” Proc., 3rd Int. Conf. on Soil Mechanics and Foundation Engineering, Zurich, Switzerland, 186–191.
14.
Roscoe, K. H. (1970). “Some results of tests in the latest model of the simple shear apparatus and new biaxial apparatus.” Veröffentlichungen des Institutes für Bodenmechanik and Felsmechanik der Universität Fridericiana, Karlsruhe, W. Germany, Heft 44, 62–94.
15.
Roscoe, K. H., Bassett, R. H., and Cole, E. R. I. (1967). “Principal axes observed during simple shear of a sand.” Proc., Geotech. Conf., Oslo, Norway, I, 231–237.
16.
Saada, A. S., and Baah, A. K. (1967). “Deformation and failure of a cross anisotropic clay under combined stresses.” Proc., 3rd Panamerican Conf. on Soil Mech. and Found. Engrg., Caracas, Venezuela, I, 67–88.
17.
Saada, A. S., and Bianchini, G. F. (1975). “Strength of one‐dimensionally consolidated clays.” J. Geotech. Div., ASCE, 101(11), 1151–1164.
18.
Saada, A. S., and Ou, C.‐D. (1973). “Stress‐strain relations and failure of anisotropic clays.” J. Soil Mech. and Found. Div., ASCE, 99(12), 1091–1111.
19.
Saada, A. S., and Townsend, F. C. (1981). “State‐of‐the‐art: Laboratory strength testing of soils.” Laboratory Shear Strength of Soil, ASTM STP 740, R. N. Yong and F. C. Townsend, eds., American Society for Testing and Materials, Philadelphia, Pa., 7–77.
20.
Saada, A. S., and Zamani, K. K. (1973). “The mechanical behavior of cross‐anisotropic clays.” Proc., 7th Int. Conf. on Soil Mech. and Found. Engrg., International Society for Soil Mechanics and Foundation Engineering, 1, 351–359.
21.
Symes, M. J. P. R., Gens, A., and Hight, D. W. (1984). “Undrained anisotropy and principal stress rotation in saturated sand.” Geotechnique, 34(1), 11–27.
22.
Tatsuoka, F., et al. (1986). “Failure and deformation of sand in torsion shear.” Soils and Foundations, Tokyo, Japan, 26(4), 79–97.
23.
Wright, D. K., Gilbert, P. A., and Saada, A. S. (1978). “Shear devices for determining dynamic soil properties.” Proc., ASCE Specialty Conf. on Earthquake Engrg. and Soil Dynamics, Pasadena, Calif., 2, 1056–1075.
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Copyright © 1989 ASCE.
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Published online: Oct 1, 1989
Published in print: Oct 1989
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