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Abstract A general elasto/viscoplastic constitutive equation of a material with memory and internal variables is proposed based on the concept of generalized simple body. The proposed theory can describe not only such rate-dependent behaviours as primary and secondary creep, but also accelerating (teritary) creep, in which strain rate increases under constant stress. The application of the proposed theory to elasto/viscoplastic material in uniaxial condition is given and numerically analyzed with respect to strain rate effect.
Abstract A general elasto/viscoplastic constitutive equation of a material with memory and internal variables is proposed based on the concept of generalized simple body. The proposed theory can describe not only such rate-dependent behaviours as primary and secondary creep, but also accelerating (teritary) creep, in which strain rate increases under constant stress. The application of the proposed theory to elasto/viscoplastic material in uniaxial condition is given and numerically analyzed with respect to strain rate effect.
Elasto/viscoplastic constitutive equations with memory and internal variables
Oka, F. (author)
Computers and Geotechnics ; 1 ; 59-69
1985-01-01
11 pages
Article (Journal)
Electronic Resource
English
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