Energy absorption Characteristics of CFRP Double Hat-shaped section member with Various Stacking Conditions under Axial Loading

Demand for weight reduction of transport has been growing in order to solve the environmental problems. In many countries, environment conservation forces the enhanced regulation on gas mileage and emission gas due to exhaustion of energy resource, adding an extra weight of environment pollution. CFRP(Carbon Fiber Reinforced Plastic) which the advanced composite materials has a widely used in lightweight structural materials of aircraft, ship and vehicle because of high strength and stiffness. In this study, collapse mode and energy absorption capability double CFRP hat-shaped section members were analyzed. The stacking condition were selected to investigate the effect of the fiber orientation angle (+/- 15 degrees, +/- 45 degrees, 90 degrees, 90 degrees/0 degrees and 0 degrees/90 degrees where 0 degrees direction coincides with axis of the member)on the energy absorption of the CFRP double hat-shaped section members. The collapse mode and energy absorption capability of CFRP double hat-shaped section members according to the change of the fiber stacking condition of CFRP.