Abstract
This paper deals with experimental observations and modeling of plastic deformations of a high strength steel sheet (HSS sheet) under biaxial stress conditions. Using a cruciform specimen of a HSS sheet of 980MPa-TS, experiments of proportional and non-proportional loadings were performed. Numerical simulations for the biaxial stress-strain responses were conducted using a constitutive model of large-strain cyclic plasticity (Yoshida-Uemori model), and the results were compared to the experimental data. The results of numerical simulation show a good agreement with the experimental results, which is attributed to accurate modeling of the backstress evolution of the anisotropic yield surface.
| Original language | English |
|---|---|
| Pages (from-to) | 895-900 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Volume | 340-341 II |
| DOIs | |
| Publication status | Published - 2007 |
| Externally published | Yes |
Keywords
- Constitutive model
- High tensile strength steel sheet
- Kinematic hardening model
- Non-proportional loading
- Yield function
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering