Comparative Study and Multi-Objective Crashworthiness Optimization Design of Foam and Honeycomb-Filled Novel Aluminum Thin-Walled Tubes

Due to their lightweight, porous and excellent energy absorption characteristics, foam honeycomb materials have been widely used for filling absorbing devices. For further improving the performance of novel tube proposed in our recent work, nonlinear dynamics software Abaqus was firstly establish verify simulation model aluminum-filled tube. Then, crashworthiness honeycomb-filled tubes, foam-filled tubes empty under axial load systematically compared analyzed. Furthermore, a comparative analysis mechanical behavior filled subjected bending carried out based on study dynamic response curve, specific deformation mechanism, difference between them also revealed. Finally, most promising structure with lateral optimized. The research results show that thin-walled structures or both better an increase at least 8.8% total absorbed energy. At same time, properties this kind are closely related styles. Foam will greatly damage weight efficiency However, is beneficial improvement SEA, which can be improved by up 18.2%.