Taylor撞击实验在泡沫铝合金力学特性研究中的应用

An application of Taylor impact experiment to study mechanical behaviors of an aluminum-alloy foam

由于泡沫铝合金具有可压缩性,经典的Taylor理论模型已不适用于描述该类材料。在适当假设的基础上建立了泡沫铝合金Taylor撞击实验分析的理论模型,并利用Taylor撞击实验数据验证了该模型的有效性,研究了泡沫铝合金的动态力学特性。实验结果表明,所考察的泡沫铝合金的应变率敏感性不强。

Considering the compressibility of an aluminum-alloy foam and the unavailability of the classic Taylor model to it, a theoretical model used to analyze the Taylor impact experiment of the aluminum-alloy foam was proposed based on some assumptions. The Taylor impact experiment was performed to validate the proposed model and to explore the dynamic mechanical properties of the aluminum-alloy foam. The experimental results show that the strain-rate sensitivity of the studied aluminum-alloy foam is not strong.