泡沫铝的动态压缩性能和吸能性研究Research on dynamic compressive properties and energy absorption of aluminum foam
程和法,黄笑梅,许玲
摘要(Abstract):
通过测量泡沫铝在动态和准静态压缩条件下的应力 -应变曲线 ,研究了泡沫铝的准静态和动态压缩行为以及不同应变条件下的吸能性 ,并对其应变率效应进行了分析。结果表明 ,在高应变速率和准静态压缩下 ,泡沫铝的σ -ε曲线均表现出弹性变形段、平缓段和密实段三阶段特征 ;泡沫铝的压缩性能具有明显的应变速率敏感性 ,随应变速率的提高 ,流动应力上升 ,吸能性升高
关键词(KeyWords): 泡沫铝;动态压缩;应变率效应;吸能性
基金项目(Foundation): 安徽省自然科学基金 ( 0 3 0 44 60 2 )
作者(Author): 程和法,黄笑梅,许玲
Email:
DOI: 10.14024/j.cnki.1004-244x.2003.05.010
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