Modelling and simulation of damage and failure in large composite components subjected to impact loads

摘要

A modelling approach for simulating the mechanical behaviour of large laminated composite components impacted by large deformable bodies, by means of advanced methods within the framework of the Finite Element Method, is presented. Thereby, an efficient shell element based modelling strategy in combination with a multiscale embedding approach allows the computational effort to be kept within reasonable bounds. Within a highly resolved subsection of the component, placed in the proximity of the impact zone, damage and failure mechanisms are modelled naturally at the length scale of individual plies and interfaces. Regions remote from the impact zone are modelled by a common laminate approach.