A multiscale modeling approach based on the Eshelby-Mori-Tanaka model and the fiber orientation averaging technique was used to predict the elastic properties of a chopped carbon fiber/epoxy composite processed by compression molding. From microstructural considerations, a practical form of the fiber orientation tensors is proposed for this material to predict its homogenized elastic properties. The predictions have been validated against the experimentally measured longitudinal and in-plane transverse elastic moduli. In addition, the predicted elastic properties have been introduced as the material input data in the finite element analyses of the four-point bending specimens made of the same material to further validate the modeling approach. The model accurately simulates the experimental results.
Revised: July 22, 2010 |
Published: August 1, 2007
Citation
Nguyen B.N., K.L. Simmons, K.I. Johnson, and J. Holbery. 2007.The Effect of Fiber Orientation on the Elastic Properties of Discontinuous Fiber Composites. In Proceedings of the American Society for Composites—Twenty-Second Technical Conference, 30-207. Lancaster, Pennsylvania:DEStech Publications. PNWD-SA-7880.