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硬质聚氨酯泡沫塑料本构关系的研究
引用本文:胡时胜,刘剑飞,王梧.硬质聚氨酯泡沫塑料本构关系的研究[J].力学学报,1998,30(2):151-156.
作者姓名:胡时胜  刘剑飞  王梧
作者单位:中国科学技术大学 力学与机械工程系 合肥 230027
基金项目:中国工程物理研究院基金
摘    要:介绍用大尺寸分离式Hopkinson压杆对四种密度的硬质聚氨酯泡沫塑料进行高应变率实验,完整地给出了这种材料在103/s高应变率下的包括弹性区、屈服区和致密区变形全过程的动态应力应变曲线,并提出了包括应力、应变、应变率和密度等参量的本构关系.

关 键 词:泡沫塑料  动态力学性能  压杆  本构关系  聚氨酯

STUDY OF THE CONSTITUTIVE RELATIONSHIP OF RIGID POLYURETHANE FOAM 1)
Hu Shisheng,Liu,Jianfei.STUDY OF THE CONSTITUTIVE RELATIONSHIP OF RIGID POLYURETHANE FOAM 1)[J].chinese journal of theoretical and applied mechanics,1998,30(2):151-156.
Authors:Hu Shisheng  Liu  Jianfei
Abstract:Rigid Polyurethane Foam is a material with cellular structure. It has excellent properties for cushioning and energy absorbing and is used in packaging and protective padding. So it is important to study its dynamic mechanical behaviour and to propose its constitutive relation including stress, strain, strain rate and density. In this paper, the high strain rate experiment of rigid polyurethane foam of four kinds of density by Split Hopkinson Pressure Bar was introduced, and the strain rate is 1 000/s, 1 5...
Keywords:foam plastic  dynamic mechanical behaviour  Split Hopkinson Pressure Bar  constitutive relationship  
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