| Q235钢的缺口效应及其声发射监测 |
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| 引用本文： | 刘国光,程青蟾,徐国珍,陈亦维,曹志华.Q235钢的缺口效应及其声发射监测[J].无损检测,2003,25(4):192-194,197. |
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| 作者姓名： | 刘国光 程青蟾 徐国珍 陈亦维 曹志华 |
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| 作者单位： | 1. 华东理工大学,上海,200237
2. 上海航天动力机械研究所,上海,200233 |
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| 摘 要： | 用声发射监测带有不同深度缺口的Q235钢试样的拉伸试验，由声发射信号分析判断缺口发生破坏的情况。缺口深度越大，声发射活动性越小，声发射事件振幅较小。缺口效应引起了声发射特性的变化。
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| 关 键 词： | Q235钢 声发射检验 拉伸试验 裂纹 缺口效应 |
| 文章编号： | 1000-6656(2003)04-0192-03 |
THE NOTCH EFFECT OF Q235 STEEL SAMPLES AND ITS ACOUSTIC EMISSION MONITOR |
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| LIU Guo guang,CHENG Qing chan.THE NOTCH EFFECT OF Q235 STEEL SAMPLES AND ITS ACOUSTIC EMISSION MONITOR[J].Nondestructive Testing,2003,25(4):192-194,197. |
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| Authors: | LIU Guo guang CHENG Qing chan |
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| Abstract: | The tensile test of Q235 steel samples with notches of different depths and their damages were monitored by acoustic emission technique. The deeper the notch was, the lower the activity of acoustic emission was, and the smaller the amplitudes of acoustic emission events became. Acoustic emission characteristics changed by notch effect. |
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| Keywords: | Acoustic emission testing Steel sample Tensile test Crack |
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