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SHPB杆加载动态裂纹扩展速度测试方法研究
Study of Method for Measuring Crack Propagation Speed Loaded By SHPB
【摘要】 利用改进的SHPB(SpiteHopkinsonPressureBar)压杆实验装置 ,建立了应力波加载条件下动态裂纹扩展速度的测定方法 ,并对 18Cr2Ni4WA钢进行了实验测定 .结果表明本文建立的方法简便易行 ,可用于高加载速率下裂纹扩展速度的测定 .
【Abstract】 The improved SHPB (Spite Hopkinson Pressure Bar)experimental apparatus was used in this paper,and the method of measuring the crack propagation speed under stress wave loading was established.The crack propagation speed of 18Cr2Ni4WA steel was measured by use of this method.The results show that the method is simple and convenient,and can be used for measuring the crack propagation speed at high loading rate.
【关键词】 SHPB装置;
动态裂纹扩展速度;
电阻断裂片;
【Key words】 SHPB apparatus; dynamic crack propagation speed; resistance fracture gage;
【Key words】 SHPB apparatus; dynamic crack propagation speed; resistance fracture gage;
- 【文献出处】 哈尔滨工程大学学报 ,Journal of Harbin Engineering University , 编辑部邮箱 ,2000年05期
- 【分类号】TB302
- 【被引频次】4
- 【下载频次】325