摘要
利用德国Zwick020材料试验机,进行高压电缆终端应力锥两种橡胶材料在不同温度环境下单向拉伸大变形力学行为的试验研究,得到不同温度和不同加载速率条件下材料的应力-应变关系曲线,并分析了温度及加载速率变化对材料力学性能的影响.运用Mooney-Rivlin橡胶材料模型,对试验材料进行了理论分析,根据试验结果拟合出相关参数,构建了适用高压电缆终端应力锥两种橡胶材料的本构关系公式.对比不同温度下两种橡胶材料的理论计算和试验的应力值,说明该本构关系满足工程实际需要,为高压电缆应力锥的进一步研究提供了理论基础.
Mechanical behavior of large-scale deformation for rubber stress cone of high voltage cable accessories was studied with a German Zwick020 material test machine.Stress-strain relation curves were obtained under different temperatures and different loading rates.From these curves,influences of temperature and loading rate were analyzed.The material＇s mechanical properties were theoretically analyzed with the Mooney-Rivlin model,and some fitting parameters of the material were got from experimental data.Two constitutive equations of material were then constructed,and the stress obtained in the experiment was compared with theoretical calculation.It shows that the equations are suitable in engineering practice and can be used for further research.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第3期237-241,共5页
Journal of Shanghai University:Natural Science Edition
关键词
橡胶材料
应力锥
本构关系
拉伸试验
rubber
stress cone
constitutive relation
tensile test
