【作者】 卢子兴； 田常津； 韩铭宝； 谢若泽； 王仁；

【Author】 Lu Zixiang~a,Tian Changjin~b,Han Mingbao~a,Xie Ruoze~b,Wang Ren~a) (a.Dept.uf Mechanics,Peking University Beijing,100871) (b.Southwest Institute of Structural Mechanics,Chengdu,610003)

【机构】 北京大学力学系； 中国工程物理研究院结构力学所；

【摘要】 通过SHPB冲击实验装置研究了硬质聚氨酯泡沫塑料在应力波加载下的动态力学性能,得到了泡沫塑料在较高应变率下的应力-应变曲线;确定了泡沫塑料的动态屈服强度和动态弹性模量等力学参数,并同落锤冲击实验及准静态压缩实验的结果进行了比较。更多还原

【Abstract】 The dynamic mechanical properties of PUB foam plastics under stress wave loading have been investigated by SHPB experimental set.The stress-strain curves of PUR foam plastics are obtained at higher strain rate.The dynamic yield strength and moduli are also determined. At the same time,the experimental results are compared with the ones of Drop Testing and quasistatic compression experiment.更多还原