Research Article
Aug 1980
Loading Rate Effects on Compressibility of Sand
Authors: John G. Jackson Jr., M.ASCE, Behzad Rohani, M.ASCE, and John Q. Ehrgott, M.ASCEAuthor Affiliations
Publication: Journal of the Geotechnical Engineering Division
Volume 106, Issue 8
Abstract
Stress-strain curves from 61 uniaxial strain tests are presented which depict the response of three dry sands to intense transient pressures; the loadings ranged from 10 MPa to 80 MPa and were applied with rise times ranging from a few tenths of a millisecond to a few minutes. Equipment and techniques used to conduct the tests and to assess the effect of wave propagation on the measurements are described. The data show that the resistance of dry sands to compression increases dramatically when loading rise times are less than 1 msec, and that the character of the stress-strain relation shifts rapidly from a stiffening response (curvature concave to stress axis) to a softening response (curvature concave to strain axis). The stress-strain response of a relatively simple rate-dependent rheologic model is shown to be in good agreement, both qualitatively and quantitatively, with the measured results.
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Published In
Journal of the Geotechnical Engineering Division
Volume 106 • Issue 8 • August 1980
Pages: 839 - 852
Copyright
© 1980 American Society of Civil Engineers.
History
Published in print: Aug 1980
Published online: Feb 11, 2021
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Authors
Affiliations
John G. Jackson Jr., M.ASCE
Supervisory Research Civ. Engrg.; Geomechanics Div., Structures Lab., U.S. Army Engr. Waterways Experiment Station, Vicksburg, Miss
Behzad Rohani, M.ASCE
Research Civ. Engr.; Geomechanics Div., Structures Lab., U.S. Army Engr. Waterways Experiment Station, Vicksburg, Miss
John Q. Ehrgott, M.ASCE
Research Civ. Engr.; Geomechanics Div., Structures Lab., U.S. Army Engr. Waterways Experiment Station, Vicksburg, Miss
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