Research Initiation: A Three-Dimensional Mixed Finite Element Method to Integrate the Dynamic Crack Growth and Failure Mechanisms in a Composite Laminate

本研究的目的是模拟复合材料层合板在低速冲击下的三维动态裂纹扩展和破坏机制。该研究将结合不同的断裂力学要素、多破坏准则和并行处理算法。计算结果将与物体低速撞击复合材料板表面和圆柱体表面的实验数据进行验证。所得规范将为预测复合材料层合板在低速冲击下的破坏提供定量设计工具。

The objective of this research is to model the three-dimensional dynamic crack growth and failure mechanism in a composite laminate subjected to low velocity impact. This study will incorporate variationally consistent fracture mechanics elements, multi-failure criteria and parallel processing algorithms. The computational results will be checked with experimental data for low velocity impacts of an object on the surface of a composite panel and a cylinder. The resultant code will provide a quantitative design tool for predicting composite laminate failure under low velocity impact.