Low-velocity impact of sandwich beams with fibre-metal laminate face-sheets
Low-velocity impact of sandwich beams with fibre-metal laminate face-sheets
复制标题
具有纤维金属层压板面板的夹层梁的低速冲击
DOI：
10.1016/j.compscitech.2018.09.018
复制
发表时间：
2018-11-10
影响因子：
9.1
通讯作者：
Wang, Tiejun
中科院分区：
文献类型：
--
作者：
Zhang, Jianxun;Ye, Yang;Wang, Tiejun
研究了纤维-金属层合板-泡沫金属夹芯夹芯梁的低速撞击问题。考虑大挠度引起的弯曲和拉伸相互作用，推导了纤维-金属层合板夹层梁动力响应的解析解。根据修正的刚塑性材料近似，得到了纤维-金属层合板夹层梁大挠度问题的简单计算公式。进行了数值计算，解析解合理地捕捉了数值结果。讨论了复合材料体积分数、金属层强度与复合材料层强度之比以及芯层强度对结构响应的影响。利用解析公式，构造了夹层梁质量最小化的优化设计图表。结果表明，本文的分析模型可以合理地预测纤维-金属层合板面板夹层梁的屈服后性能。
Low-velocity impact of fully clamped sandwich beams with fibre-metal laminate face-sheets and metal foam core struck by a heavy mass is investigated. Analytical solutions are developed for the dynamic response of sandwich beams with fibre-metal laminate face-sheets considering the interaction of bending and stretching induced by large deflections. According to the rigid-plastic material approximation with modifications, simple formulae are obtained for the large deflection of sandwich beams with fibre-metal laminate face-sheets. Numerical calculations are carried out, and analytical solutions capture numerical results reasonably. The effects of the composite volume fraction, the ratio of metal layer strength to composite layer strength, and core strength on the structural response are discussed. Using the analytical formulae, optimal design charts are constructed to minimize the mass of sandwich beams. It is demonstrated that the present analytical model can predict the post-yield behaviour of sandwich beams with fibre-metal laminate face-sheets reasonably.