Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8534
Title: 3-D elastic viscoplastic modeling analysis of a diatomaceous soft rock
Authors: Liao, HJ
Su, LJ
Yin, JH 
Keywords: Consolidated-undrained triaxial test
Constitutive relation
Equivalent time
Soft rock
Strain softening
Time-dependent
Issue Date: 2004
Publisher: 岩土力學編輯部
Source: 岩土力學 (Rock and soil mechanics), 2004, v. 25, no. 3, p. 337-341 How to cite?
Journal: 岩土力學 (Rock and soil mechanics) 
Abstract: Based on Perzyna's fundamental assumptions of the elastic viscopalstic theory, a viscoplastic flow rule, and Yin and Graham's 3-D elastic viscoplastic constitutive model (3-D EVP model), the formulation under a triaxial stress state is obtained. Yin and Graham's model proposed new concepts such as equivalent time, instant time line, reference time line and limit time line. The derived formulation is used to simulate the time-dependent stress-strain behavior of consolidated undrained triaxial tests of a soft rock. The simulated results are compared with the triaxial test results. The comparison of the results shows that agreement between the model predictions and measured results is good. This demonstrates that the EVP model can be used to describe the time-dependent stress-strain behavior of the diatomaceous soft rock.
URI: http://hdl.handle.net/10397/8534
ISSN: 1000-7598
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