摘要
对不同标称密度的国产聚苯乙烯泡沫塑料(EPS)进行了单向拉伸和单向压缩的加载试验.通过对试验结果的研究分析,阐述了密度和应变率对EPS材料力学性能的影响,并利用Ramberg-Osgood模型描述了材料的单轴拉伸一维应力应变关系.
The uniaxial tensile and compression behaviors of EPS with different densities are investigated.Based on the experimental results,it is found that the mechanical behavior of the EPS not only depends on the density of the material but also depends on the strain rate.And a Ramberg-osgood type constitutive model may be used to describe the stress-strain relation of the material under uniaxial tension.
出处
《湖南工程学院学报（自然科学版）》
2007年第4期23-26,共4页
Journal of Hunan Institute of Engineering(Natural Science Edition)
基金
湖南省教育厅科研资助项目(06C243)
