Uniaxial tension and tensile creep behaviors of EPS

摘要：

The mechanical behavior of EPS (Expanded polystyrene) with three densities at room temperature and under tension loading was studied. The results show that EPS material is characterized by brittle behavior in the tension tests, and tensile properties of EPS increase with the increase of density. Volume fraction has no a significant effect on the modulus of these foams. The tensile creep strain increases with stress for EPS with same density, indicating that the creep behavior is of the stress dependency. And the creep behavior of EPS exhibits density dependency, which the creep strain decreases with densities for a fixed stress value. Moreover the creep behavior under the constant tension load is well in coincidence with the three-parameter solid model.

关键词： EPS mechanical behavior tensile creep density

作者: KANG Ying-an(康颖安) LI Xian-fang(李显方) TAN Jia-cai(谭加才)

作者单位: Department of Mechanics Engineering, Hunan Institute of Engineering,Xiangtan 411101, China; Institut Institute of Mechanics and Sensor Technology, Central South University, Changsha 410083, China Department of Mechanics Engineering, Hunan Institute of Engineering,Xiangtan 411101, China

会议类型: 国际会议

会议名称: 第九届全国流变学学术会议

会议地点: 长沙

会议语种:英文

页码: 202-205

在线出版日期: 2008-09-28（万方平台首次上网日期，不代表论文的发表时间）