FEM modeling of to simulate drop-weight fracture of CFRTP with elastomer dispersion layer

Abstract

CFRTP are becoming of interest to mass production industries. In this study, we investigate the capability of energy absorption and its mechanism of new concept CFRTP under impact loading by experiment and calculation. New concept CFRTP improved both static and impact characteristics was manufactured by laminating prepregs which inserted reinforced layer dispersed elastomer particles in the resin and controlled its direction. The experiments were conducted drop-weight impact test at a key impact energy (120J) for different elastomer-volume fractions. An LS-DYNA finite element analysis model of drop-weight impact test were implemented by 4 methods. By comparing load-displacement curves and damage behavior between experiment and numerical predict, we aimed to establish highly accurate analysis method and tried to clarify the main factors in improving the impact characteristics.