Abstract
This paper presents a constitutive model that has a high capability of describing the deformation behavior of large-strain cyclic plasticity and also the stress-strain responses at small-scale re-yielding after large prestrain. A new equation of backstress evolution is proposed for an accurate simulation of the transient Bauschinger effect. Furthermore, an original idea of a non-isotropic-hardening surface defined in the stress space is presented for the description of the workhardening stagnation appearing under reverse deformation, as well as the strain-range and mean-strain dependencies of cyclic hardening characteristics. The validity of this model is confirmed by comparing the cyclic stress-strain responses calculated by the model with the experimental observations on some steel sheets and an aluminum sheet.
| Original language | English |
|---|---|
| Pages (from-to) | 661-686 |
| Number of pages | 26 |
| Journal | International Journal of Plasticity |
| Volume | 18 |
| Issue number | 5-6 |
| DOIs | |
| Publication status | Published - Apr 10 2002 |
| Externally published | Yes |
Keywords
- B. Constitutive behaviour
- B. Cyclic loading
- B. Finite strain
- Bauschinger effect
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering