Numerical Modeling of Fracturing in Fiber Reinforced Polymers with Grid-characteristic Method

Numerical modeling of aircraft composites dynamic failure is a relevant and wide subject. This research concentrates on the barely visible impact damage that is caused by a low-velocity impact with a steel striker. The one-side crack model is verified on experimental data for short energy pulse on glass. An impact of steel striker and unidirectional composite rib was modeled, several sizes of striker and values of impact energy from \(5{\text{ J}}\) to \(50{\text{ J}}\) are considered. Several failure criteria were considered: Tsai–Hill, Tsai–Wu, Drucker–Prager, Hashin, Puck, LaRC03, LaRC04. Analysis of crack directions for the largest principal stress criterion and the Puck criterion was conducted.