Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity
Conference
·
OSTI ID:962041
In this work, we propose a comparison between two different approaches for the simulation of the large deformation response and crystallographic texture evolution in polycrystals. The first approach is the well-know self-consistent scheme. For this, we used the Visco-Plastic-Self-Consistent (VPSC) approach. The second approach is based on a recently developed intermediate modeling. In a first part of this paper, we present the VPSC model. In a second part, we define the intermediate linear modeling which is based on a linear combination of Taylor and Sachs models using a weight parameter. For the comparison of these two approaches, we present different results in the case of uniaxial tests for an FCC polycrystal for different values of the weight parameter for the intermediate modeling and for different formulations of the macroscopic moduli in the self-consistent model.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 962041
- Report Number(s):
- PNNL-SA-50761; VT0505000
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison between self-consistent and intermediate approaches for the simulation of large deformation polycrystal viscoplasticity
An Extended Self-Consistent Viscoplastic Polycrystal Formulation: Application to Polycrystals with Voids
Journal Article
·
Wed Aug 15 00:00:00 EDT 2007
· Materials Science Forum, 553:81-86
·
OSTI ID:921244
An Extended Self-Consistent Viscoplastic Polycrystal Formulation: Application to Polycrystals with Voids
Technical Report
·
Fri Aug 01 00:00:00 EDT 2003
·
OSTI ID:821538