VARIATION OF ELECTRO-CONDUCTIVE PROPERTY OF SSF/PP SYSTEM UNDER IMPACT LOADING USING A MODIFIED SHPB

摘要：

In order to detect the variation of electroconductive property of short steel fiber (SSF) filled polypropylene (PP) under impact loading,a modified split Hopkinson pressure bar (M-SHPB) is suggested.Such M-SHPB is constructed by designing a new test electrocircuit,and connecting it to the specimen and oscillograph.On the other hand,a copper foil cover is designed and placed on the whole SHPB equipment for avoiding disturbance of electromagnetic wave existing in the testing environment.By means of M-SHPB,the relation between the resistance and dynamic stress or dynamic strain is effectively detected.The experimental results indicate that the resistance of the material decreases with the increase of strain or stress.

关键词： polymeric composite electroconductivity modi lied split hopkinson pressure bar (M-SHPB) impact loading

作者: J.T.Lei M.H.Zhang J.K.Chen

作者单位: Faculty of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 696-700

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）