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粉末冶金多孔材料具有较低的密度和弹性波速 ,对其施加动态压缩实验具有一定的难度。本文在分析该材料的各种特性后 ,在对该材料进行动态测试时 ,采用半导体应变片技术等方法 ,得出该材料在冲击荷载作用下的应力应变曲线。填补了该粉末冶金材料动态性能数据的空白 ,为工程应用提供了可靠的实验数据
Powder metallurgy porous materials with lower density and elastic wave velocity, the dynamic compression test to its application has a certain degree of difficulty. After analyzing various characteristics of this material, this article uses the semiconductor strain gauge technology and other methods to get the stress-strain curve of the material under the impact load. Filled up the blank of the dynamic performance data of the powder metallurgy material, provided reliable experimental data for engineering application