In order to model the various phenomena which govern the mechanical response of bonded geomaterials under monotonic loadings, an elastoplastic model coupled with an elastic model with damage was developed, taking into account both the frictional and cohesive aspects of these materials. First, the pr
Coupled viscoplasticity damage constitutive model for concrete materials
✍ Scribed by Chang-chun Liu; He-xiang Lü; Ping Guan
- Publisher
- Springer
- Year
- 2007
- Tongue
- English
- Weight
- 478 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0253-4827
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📜 SIMILAR VOLUMES
A procedure is described for including isotropic and directional damage as ioad-historydependent softening variables in a set of elastic-viscoplastic constitutive equations. The evolution equation proposed for isotropic damage integrates to an exponential form for the case of constant stress, Direct
A generalized viscoplasticity theory, with kinetic coupling to damage, was presented by Johansson and Runesson. 1 This theory, which is based on the Duvaut-Lions' concept of viscoplastic reguralization, includes the (unconventional) concept of dynamic yield surface that is approached asymptotically
A dynamic damage constitutive relationship for concrete in uniaxial tension is, with certain hypotheses, achieved through the constitutive model together with some performance tests of high rate deformation. The results predicted by the present theory agree pretty well with those obtained from exper