| 傅立叶弥散分析在冲击拉伸和冲击压缩试验中的应用 |
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| 引用本文： | 王从约,夏源明.傅立叶弥散分析在冲击拉伸和冲击压缩试验中的应用[J].爆炸与冲击,1998,18(3):213-219. |
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| 作者姓名： | 王从约 夏源明 |
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| 作者单位： | 中国科学技术大学力学与机械工程系 |
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| 摘 要： | 将傅立叶弥散分析方法和程序（ＦＦＴＤＳＰ）应用于冲击拉伸和冲击压缩试验中，分析了输入杆和输出杆中波的弥散效应对试验结果的影响。带有弥散修正的试验结果表明，由于入射脉冲产生方式不同，冲击压缩试验系统中传播的应力波带有显著的弥散效应，而间接杆杆型冲击拉伸试验系统中传播的应力波的弥散效应一般较小。
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| 关 键 词： | 傅立叶弥散修正 冲击拉伸 试验 冲击压缩 |
APPLICATION OF FOURIER ANALYSIS OF THE DISPERSION EFFECT TO SPLIT HOPKINSON PRESSURE TESTING SYSTEM AND BAR BAR TENSILE IMPACT TESTING SYSTEM |
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| Wang Congyue,Xia Yuanming.APPLICATION OF FOURIER ANALYSIS OF THE DISPERSION EFFECT TO SPLIT HOPKINSON PRESSURE TESTING SYSTEM AND BAR BAR TENSILE IMPACT TESTING SYSTEM[J].Explosion and Shock Waves,1998,18(3):213-219. |
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| Authors: | Wang Congyue Xia Yuanming |
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| Abstract: | In this paper,the Fourier method and corresponding code (FFTDSP) for dispersion analysis in the bar is applied to the Split Hopkinson Pressure Testing System and the Bar Bar Tensile Impact Testing System.Modified experimental results with correction of dispersion effects are obtained.The results show that the Split Hopkinson Pressure Testing System has more remarkable dispersion effects than the Bar Bar Tensile Impact Testing System. |
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| Keywords: | Fourier analysis for dispersion split Hopkinson pressure test and bar bar tensile impact test |
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