Abstract
A new micromechanical model is provided to account for the full interaction between rubber particles in polymer blends. Three-dimensional large deformation elastic-plastic finite element analysis is carried out to obtain the local stress and strain fields and then a homogenisation method is adopted to derive the effective stress-strain relation. The dependence of the local stress distribution and effective stress-strain relation on phase morphology and mechanical properties of rubber particles is examined under various transverse constraints. It is shown that triaxiality affects greatly the stress concentration factor and effective yield stress although it has no influence on the effective Young's modulus and Poisson's ratio.
| Original language | English |
|---|---|
| Pages (from-to) | 233-242 |
| Number of pages | 10 |
| Journal | Key Engineering Materials |
| Volume | 145-149 |
| Publication status | Published - 1998 |
| Externally published | Yes |
Keywords
- 3D Elastic-Plastic Finite Element Analysis
- Deformation Mechanisms
- Micromechanical Model
- Rubber-Toughened Polymers
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering