IMPACT RATE EVALUATION OF COMPOSITE SANDWICH PLATES USED IN SHIPBUILDING

Abstract

Low weight of ship hull structure is the target in the design process. Lower hull weight enables the possibility of low consumption and thus low emission of the ship. By using the last technologies in composite structures field, many structures have been built from light materials with high performances. Response of several composite sandwich plates to impact dynamic loads and to a quasi-static simulation of rigid spherical indenter has been evaluated and compared. In this paper, the important aspect of dynamic loading of composite sandwich structures is presented. The dynamic response of composite sandwich plates is analyzed by impacting the plates at mid-skin surface with a steel sphere. The numerical analysis was performed by using AUTODYN 3D solver from ANSYS.