Material and Low-Velocity Impact Characterizations of Textile Composite Plates

摘要

In this study, the material characterization and the dynamic behavior of 3D orthogonal wovencomposite materials has been studied under transverse central low-velocity impact condition bymeans of the micromechanical model using finite elements. To build up the micromechanical modelconsidering tow spacing and waviness, an accurate unit structure is stacked in x-y-z directionrepeatedly. First, the mechanical properties of 3D orthogonal woven composites are obtained bymeans of virtual experiment using full scale Finite Element Analysis based on the DNS concepts, andthe computed elastic properties are validated by comparison to available experimental results[9].Second, using the implementation of this validated micromechanical model, 3D transient finiteelementanalysis is performed considering contact and impact, and the impact behavior of 3Dorthogonal woven composite is investigated. A comparison study will be carried out in terms ofenergy absorption capabilities.