Abstract
Three-dimensional constitutive models based on a combination of fracture mechanics and micromechanical formulation are presented to predict the effective mechanical behavior and damage evolution of chopped fiber polymeric composites. The progressive loss of strength resulting from the nucleation and growth of microcracks is incorporated into the constitutive models. A completely general derivation of the self-consistent method and differential scheme for the overall properties of microcracked composites is considered. A number of numerical methods are utilized to estimate the effective moduli of composites with random distribution and aligned distribution of microcracks. Finally, the constitutive models are implemented into the finite element code, DYNA3D, to simulate the large-scale problems encountered in automotive applications.
| Original language | English |
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| Pages | 1449-1457 |
| Number of pages | 9 |
| State | Published - 2001 |
| Externally published | Yes |
| Event | 33rd International SAMPE Technical Conference -Advancing Affordable Materials Technology- - Seattle, WA, United States Duration: Nov 5 2001 → Nov 8 2001 |
Conference
| Conference | 33rd International SAMPE Technical Conference -Advancing Affordable Materials Technology- |
|---|---|
| Country/Territory | United States |
| City | Seattle, WA |
| Period | 11/5/01 → 11/8/01 |
Keywords
- Constitutive models
- Finite element implementation
- Nucleation and growth of microcracks