Dynamics of cracked composite material structures

摘要

As the result of this work models of the finite cracked beam element, delaminated beam element, and also delaminated plate element have been developed. These models have been used for the analysis of the in- Fluence of the fatigue cracks and delaminations on the Dynamic characteristics of the constructions made of Unidirectional composite materials. The method of mod- Elling cracks and delaminations presented in this work Enables its easy modification according to specific cases of Damage (i.e. oblique crack, two-side crack, inside crack, Multiple delaminations etc.).