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材料工程  2014 

多孔金属介质的力学性能及其参数依赖性研究

DOI: 10.3969/j.issn.1001-4381.2014.02.011, PP. 55-59

Keywords: 多孔金属,相对密度,平台应力,能量吸收

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Abstract:

采用万能材料试验机(MTS)和扫描电子显微镜(SEM)对几种典型多孔泡沫铜的准静态力学特性及其微观特征进行研究。结果表明,材料的压缩过程为典型的三阶段形式弹性段、平台段和密实段;其力学性能不但依赖相对密度,而且受平均孔径的影响。材料力学性能的孔径依赖性主要是由其结构的各向异性所致。

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