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利用材料试验机和分离式霍普金森压杆(SHPB)系统对加压烧结制备的Zr-W多功能含能结构材料在不同应变率下的压缩行为进行测试。通过在试样上直接贴应变片与波形整形技术相结合,实现了恒应变率动态加载。试验结果表明:该材料在准静态和动态加载下均呈现良好的线弹性,弹性模量对应变率效应不敏感,约为186 GPa。烧结生成的W2 Zr相显著提高了Zr-W材料的强度和脆性,试样在强冲击载荷作用下发生破碎反应并释放大量的热量,表现出很高的含能特性,动态破坏应变和破坏强度表现出一定的正应变率效应。

The compressive behavior of pressing sintering Zr-W multifunctional energetic structural material was tested at different strain rates by using material testing machine and split Hopkinson pressure bar (SHPB)system. A constant strain rate dynamic loading can be obtained by combination of attaching a strain gauge directly to the sample and employing the pulse shaping technique.Test results show that Zr-W material appears good linear elastic-ity both under quasi-static and dynamic loading,and its elastic modulus is about 186 GPa,not so sensitive to stain rate effect.The Zr-W material presents high-strength and brittle which is attributed to the W2 Zr sintering product phase,and it can fragment,react and rapidly release high amounts of energy under strong impacting load.The re-sults show that the Zr-W material has high energy,and its dynamic failure strain and failure strength increase with the strain rate increasing.

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