Abstract
This paper presents a constitutive model of plasticity that describes the cyclic stress-strain responses at large strain. A new equation of backstress evolution is proposed for an accurate simulation of the transient Bauschinger effect. 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 two types of steel sheets (an aluminum-killed steel and a dual-phase high strength steel of 590 MPa tensile strength).
| Original language | English |
|---|---|
| Pages (from-to) | 415-421 |
| Number of pages | 7 |
| Journal | Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |
| Volume | 68 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 2002 |
| Externally published | Yes |
Keywords
- Bauschinger effect
- Computational mechanics
- Constitutive equation
- Large strain
- Plasticity
- Workhardening stagnation
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering