| About this Abstract |
| Meeting |
Materials Science & Technology 2012
|
| Symposium
|
Symposium on the Fatigue of Materials II: Advances and Emergences in Understanding
|
| Presentation Title |
Evaluation of Effective Stress in a Physics-Based Multiscale Approach to Fatigue in Polymer Composites |
| Author(s) |
Ray S Fertig |
| On-Site Speaker (Planned) |
Ray S Fertig |
| Abstract Scope |
Predicting fatigue life under complex multiaxial stress states and arbitrary load histories represent two challenges to fatigue life prediction in polymer matrix composites. To meet these challenges a robust and accurate physics-based model was developed for predicting fatigue life of composites based on matrix failure, where the matrix stress state is used to drive a fatigue model based on the kinetic theory of strength. To apply this model an effective volume average matrix stress is required. Here a critical evaluation of various mappings between the full matrix stress tensor and an effective matrix stress will be presented and the optimal mapping will be discussed. |
| Proceedings Inclusion? |
Definite: A combination print-CD volume |