Abstract
This work presents an approach for modeling high-velocity impact on multi-layered plain weave composites. This approach resolves plain weave architecture with mesoscale detail, and applies the continuum assumption to the microscale. Models include rate-dependent material constitutive, damage and failure behavior, and rate-dependent cohesive interfacial failure. Rate-dependent cohesive traction-separation laws were derived from previously published microscale models of fracture. The modeling approach was validated by comparing the predicted impact versus residual velocity (VI-VR) response to previously published experimental results. Finally, the model is used to predict the VI-VR response for a 22-layer composite and the results are compared with experimental results from the literature. Good correlation is shown between experiment and model predictions.
