夹层板系统压缩力学性能试验研究

夹层板系统以其优越的力学性能在工程领域得到广泛应用。对夹层板系统在不同加载速率下的压缩力学性能进行了试验研究。首先对钢-聚氨酯-钢夹层板系统进行了准静态压缩试验,得到夹层板系统的准静态等效应力-应变曲线;并对同一组试样,基于分离式霍普金森压杆试验装置,进行了动态冲击压缩试验。近似等效SHPB试验原理,分析夹层板系统的动态力学性能。比较分析结构的破坏形式和原因,为新型结构的优化设计和应用提供参考。

Experimental Study on the Compressive Mechanical Properties of Sandwich Plate System

Sandwich plate system is widely used in engineering field with its superior mechanical properties. In the present paper, the compressive mechanical properties of sandwich plate system was experimental studied based on the test device of split Hopkinson pressure bar. The equivalent constitutive relation of steel-polyurethane-steel structure under the static compression test was obtained. And then the dynamic impact compression test for the same set of sample was done. The dynamic mechanical properties, damage form and damage reason of sandwich plate system was investigated. The results can provide foundation for new structure optimization design and application.