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

1.
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China;
2.
Institute of Solid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要: 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。
- 固体力学 /
- Taylor模型 /
- 动态冲击 /
- 泡沫铝合金 /
- 力学性能
Abstract: 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.
- solid mechanics /
- Taylor model /
- dynamic impact /
- aluminum-alloy foam /
- mechanical properties