INFLUENCE OF FACE SHEET MATERIALS ON ANTI-IMPACT PERFORMANCE OF ALUMINUM FOAM SANDWICH BEAM

In order to study influence of the face sheet materials on anti-impact performance of aluminum foam sandwich beam,dynamic responses of aluminum foam sandwich beams with 304# stainless steel,pure aluminum,and HRB335 steel face sheet were calculated by FEM software LS_DYNA under the action of different impulse.All aluminum foam sandwich beam have the same weight.The influence of different face sheet materials on the midspan deformation and core compressive strain of aluminum foam sandwich beam was analyzed.The results show that face sheet materials are certain affection for the anti-impact performance of aluminum foam sandwich beam.The bigger impulse induced by explosive load products bigger core compressive strain of aluminum foam sandwich,moreover,the influence of face sheet materials on compressive strain of the core of aluminum foam sandwich is bigger.The midspan deformation and core compressive strain of aluminum foam sandwich beams with HRB335 steel face sheet is the minimum among them under bigger impulse.