The damage process in composite materials occurs at different length scales, ranging from the scale of the constituents and defects (microscale) to that of a composite structure (macroscale). This paper develops a multiscale mechanistic approach to fatigue damage in discontinuous-fiber polymer composites. The approach accounts for the damage mechanisms in addition to the constituents’ properties and characteristics. It links these micro-features to the behavior of the composite structure through a series of scale transitions using computational techniques that are based on micromechanical modeling, a thermodynamics-based formulation and finite element analysis.
Revised: February 28, 2007 |
Published: June 14, 2005
Citation
Nguyen B.N., B.J. Tucker, and M.A. Khaleel. 2005.A Multiscale Modeling Approach to Fatigue Damage in Discontinuous Fiber Polymer Composites. In Proceedings of the Third MIT Conference on Computational Fluid and Solid Mechanics (June 14-17, 2005) - Cambridge, MA, USA, edited by K. J. Bathe, 401-405. Kidlington:Elsevier Ltd.PNNL-SA-42824.