1007-9629(2012)03-0356-05
范俊奇1'2,董宏晓2,高永红1'2,楼梦麟1
1.同济大学土木工程防灾国家重点实验室,上海200092;2.总参工程兵科研三所,河南洛阳471023
摘要:在静力试验的基础上,利用INSTRON-1185型万能材料试验机在快速加载条件下对不同应变速度的聚氨酯泡沫材料动载抗压性能进行了较系统的试验,完整给出了聚氨酯泡沫材料在高应变速率下的动态应力应变曲线,定性研究了聚氨酯泡沫材料的动态力学行为,探讨了该材料性能与加载速率的关系,得到了考虑应变率效应的材料动态本构关系,最终给出了便于工程应用的材料静态和动态力学参数之间的关系.
聚氨酯泡沫材料;高应变率;动态力学性能;吸能特性
TB535+.1A10. 3969/j. issn. 1007-9629. 2012.03. 012
Study on Dynamic Mechanical Properties of
Polyurethane Foam Materials under High Strain Rate
FAN Jun-qi DONG Hong-xiao GAO Yong-hong LOU Meng-lin
2010-12-192011-03-14
范俊奇(1975-),男,河南洛阳人,同济大学博士生.E-mail: lyfjq@163.com
万方数据
6.67X 10 2 0.346 6.85
1.33× 10-1 0.376 5.57万方数据
与静屈服应力的关系
amic yield stress and static yield stress万方数据
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万方数据