提出两端固支泡沫铝夹芯梁在跨中受到冲击荷载作用下动力响应的简化理论计算方法。运用该方法及有限元软件LS—DYNA分别计算了泡沫铝夹芯梁在冲击荷载作用下的动力响应，着重考查了面板材料及芯材厚度对泡沫铝夹芯梁跨中位移的影响情况。并通过试验测量结果对理论计算结果及数值模拟结果进行了验证。研究显示，在不同冲量作用下，泡沫铝夹芯梁跨中位移理论值与实验结果两者符合程度较好，最大误差仅为14%；HRB335级钢面板泡沫铝夹芯梁较304#不锈钢面板泡沫铝夹芯梁在相同冲量作用下具有更小的跨中位移；芯材厚度的增加对提高泡沫铝夹芯梁抵抗冲击荷载的性能也有一定的贡献，夹芯梁芯材厚度由10mm增加至20mm，其跨中位移减小了33%左右。

A simplified analytical method was developed in this paper to determine the dynamic response of clamped sandwich beam with aluminum foam core under impulsive load. The analytical method and FEM were applied to study the dynamic response of sandwich beam with aluminum foam core under impulsive load. The results of analytical method and FEM were compared with results in test. The effect of the face material and the core thickness were studied mainly in this paper. The results of analytical method is good agree with the results of test. The results of analytical method is at most only 14% over the results of the test. The deflection of the sandwich beam with HRB335 steel face sheet and aluminum foam core is smaller than the deflection of sandwich beam with 304# stainless steel face sheet and aluminum foam core. The more thick core thickness of sandwich beam, the smaller deflection of sandwich beam under the same impulsive load. The thickness of sandwich beam increased from 10mm to 20mm, the deflection of sandwich beam deduced about 33%.