真空橡胶的动静态力学性能及本构关系的研究  

Study on static/dynamic mechanical properties and constitutive relation of vacuum rubber

作　　者：高光发[1,2] 李永池[2] 李建阳[2] 王道荣[3] 蒋东[2] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001 [2]中国科学技术大学近代力学系,安徽合肥230027 [3]北京航天长征飞行器研究所,北京100076

出　　处：《功能材料》2010年第9期1647-1649,1654,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(10572134);国防科技重点实验室基金资助项目(51453030205ZK0101)

摘　　要：针对真空橡胶的特性展开了MTS实验和SHPB实验,通过实验获得了材料的基本力学参数和应力-应变曲线,并对材料的变形行为、应变率相关效应和破坏特性作了必要的分析,在此基础上给出了材料的本构关系。结果表明,真空橡胶材料在准静态加载下,应力<3MPa时,应变率效应不明显;在冲击载荷作用下,随着加载应变率的提高,应变率效应比较明显。Tests via MTS and SHPB on the properties of vacuum rubber were carried out.Basic mechanical parameters and stress-strain curve of them were obtained.The constitutive model was presented based on necessary analysis of deformation behavior of materials,strain-rate-related effects and destruction properties.It provides bases for engineering applications of these materials and further improvement.Results show： strain rate effect of vacuum rubber material is not obvious under quasi-static loading with stress less than 3MPa,which is more obvious under shock loading with increasing strain rate.

关 键 词：真空橡胶 材料本构 SHPB 应变率效应 

分 类 号：O345[理学—固体力学] TB302[理学—力学]