Abstract
A new stress integration algorithm for the constitutive models of materials that
undergo strain-induced phase transformation is presented. The most common materials that
fall into this category are metastable austenitic stainless (TRIP) steels. These materials can
be classi¯ed as metal-matrix composites which comprise a soft and a hard metallic phase. A
homogenization algorithm is presented that can estimate the evolution of state variables in each
phase for a given strain increment. The elastic-plastic behavior of the phases are calculated
individually using large deformation theory and the calculated algorithmic tangent moduli are
used in different homogenization schemes. Furthermore, the phase transformation process in
austenitic stainless steels involves a volumetric expansion and an inelastic shape change collinear
with the deviatoric stress. This transformation plasticity is approximated by a phenomenological
model and incorporated in the stress update algorithm.
| Original language | Undefined |
|---|---|
| Title of host publication | Complas 2007 |
| Pages | - |
| Number of pages | 4 |
| Publication status | Published - 2007 |
| Event | 9th International Conference on Computational Plasticity. Fundamentals and Applications, COMPLAS 2007 - Barcelona, Spain Duration: 5 Sep 2007 → 7 Sep 2007 Conference number: 9 |
Conference
| Conference | 9th International Conference on Computational Plasticity. Fundamentals and Applications, COMPLAS 2007 |
|---|---|
| Abbreviated title | COMPLAS 2007 |
| Country | Spain |
| City | Barcelona |
| Period | 5/09/07 → 7/09/07 |
Keywords
- IR-69670
- METIS-263669
- Onderzoek van algemene industriele aardMechanical engineering and technology