A micromechanics-driven model for compressive fatigue of fiber-reinforced composites
Abstract
A micromechanics model to predict the fatigue life of fiber-reinforced polymer matrix composites (FRPC) is developed and used for estimating compressive fatigue failure of unidirectional carbon fiber composite. The micromechanics model utilizes constituent, fiber, and matrix material properties. An experimental procedure to obtain the matrix properties that are needed is also described. The model is implemented using the finite element method (FEM). The FEM simulations can predict the classic kink band failure seen in pre–preg-based and textile composites. In addition, an envelope fatigue loading approach is utilized to model the fatigue cycle. Using the combination of matrix fatigue degradation and the fatigue loading method, it is possible to numerically predict the S-N curve, based on the failure mechanics.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 24, 2022
- Source ID
- 10.1177/07316844211066636
Entities
People
- Anthony Waas
- Paul Davidson
Organizations
- Army Research Office
- University of Michigan
- University of Texas at Arlington