Abstract
This paper presents a framework of constitutive modeling of large-strain cyclic plasticity which describes both the deformation- and texture-induced anisotropies of materials. In this model, the transient Bauschinger effect is described accurately by a new equation of the backstress evolution, and the strain-range and mean-strain dependencies of cyclic strain-hardening are expressed by a model of workhardening stagnation. For the description of texture-induced anisotropy, any of widely accepted yield criteria of orthotropic anisotropy is easily incorporated into this model. This paper demonstrates the advantage of the present model in the springback analysis over other classical models by comparing the FE simulations of draw-bending with the corresponding experimental results.
| Original language | English |
|---|---|
| Pages (from-to) | 47-58 |
| Number of pages | 12 |
| Journal | Key Engineering Materials |
| Volume | 233-236 |
| Issue number | I |
| Publication status | Published - Jan 1 2002 |
| Externally published | Yes |
| Event | Proceedings of the 6th Asia-Pacific Symposium on Engineering Plasticity and Its Applications (AEPA2002) - Sydney, NSW, Australia Duration: Dec 2 2002 → Dec 6 2002 |
Keywords
- Bauschinger effect
- Constitutive model
- Cyclic plasticity
- Large strains
- Orthotropic anisotropy
- Sheet metal forming
- Springback
- Workhardening stagnation
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering