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聚合物材料SHPB实验关键问题
引用本文:赵荣国,陈朝中,罗文波,罗希延,李红超,谭敦厚.聚合物材料SHPB实验关键问题[J].固体力学学报,2011(Z1).
作者姓名:赵荣国  陈朝中  罗文波  罗希延  李红超  谭敦厚
作者单位:湘潭大学土木工程与力学学院;同济大学航空航天与力学学院;中国航空工业集团黎阳航空发动机公司;
基金项目:国家自然科学基金资助项目(10772156,11172256); 中南林业科技大学流变力学与材料工程研究所开放课题(10RM02)资助
摘    要:分离式霍普金森压杆(SHPB)广泛用于测量聚合物材料在高应变率下的动态力学行为.但是由于聚合物材料本身的低强度、低刚度、低阻抗、低波速等特点,使得SHPB动态试验相比其他材料更加复杂.论文较为详细地综述了聚合物材料SHPB实验技术中的应力应变计算、脉冲整形技术、动态应力平衡、摩擦与惯性效应、试件与波导杆的选择、碰撞速度与应变率关系、最大常应变率的确定等关键问题及其进展.理解这些关键问题并且采用目前较好的方法,对于获得聚合物材料有效和准确的高应变率力学特性具有重要意义.

关 键 词:霍普金森压杆  聚合物材料  高应变率  力学特性  

KEY PROBLEMS OF SHPB EXPERIMENTS USED FOR POLYMERIC MATERIALS
Rongguo Zhao Chaozhong Chen Wenbo Luo Xiyan Luo, Hongchao Li Dunhou Tan.KEY PROBLEMS OF SHPB EXPERIMENTS USED FOR POLYMERIC MATERIALS[J].Acta Mechnica Solida Sinica,2011(Z1).
Authors:Rongguo Zhao Chaozhong Chen Wenbo Luo Xiyan Luo  Hongchao Li Dunhou Tan
Institution:Rongguo Zhao1 Chaozhong Chen2 Wenbo Luo1 Xiyan Luo1,3 Hongchao Li1 Dunhou Tan1(1College of Civil Engineering and Mechanics,Xiangtan University,Xiangtan,411105)(2School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai,200092)(3Liyang Aero-Engine Corporation,Aviation Industry Corporation of China,Anshun,561102)
Abstract:Split Hopkinson pressure bar(SHPB) has been extensively used to measure dynamic mechanical behavior of high strain rate of polymeric materials.However,owing to the special properties,such as low strength,low stiffness,low impedance,low wave velocity,etc,which makes the dynamic experiments for polymeric materials more complicated.In this paper,several key problems and advances in dynamic experiment technique for polymeric materials are summarized and reviewed.These problems include stress and strain calculat...
Keywords:SHPB  polymer  high strain rate  mechanical property  
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