| 焊缝残余应力的磁性法和盲孔法测试及讨论 |
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| 引用本文： | 傅玉华,黄志强,吴家声,雷福生. 焊缝残余应力的磁性法和盲孔法测试及讨论[J]. 武汉化工学院学报, 1991, 0(3) |
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| 作者姓名： | 傅玉华 黄志强 吴家声 雷福生 |
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| 作者单位： | 武汉化工学院机械系(傅玉华，黄志强，吴家声)，武汉石油化工厂设备研究所(雷福生) |
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| 摘 要： | 本文讨论了磁性法中灵敏系数α的确定,结果得到笼统地用母材的α值来计算焊缝及焊缝熔合线附近的应力是不适当的;同理,盲孔法中亦不宜用母材的机械能来笼统地计算上述区域的应力值。在磁性法中,理论上讲角θ_1与θ_2应相等,但实测结果表明,θ_1与θ_2有差异,因此θ_1与θ_2应以实测为准。
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| 关 键 词： | 焊缝 残余应力 测量 磁性法 盲孔法 |
Measurement of Residual Welding Stress by Magnetic and Mathar Methods and Discussion |
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| Fu Yuhua,Huang Zhiqiang,Wu Jiasheng,and Lei Fusheng. Measurement of Residual Welding Stress by Magnetic and Mathar Methods and Discussion[J]. Journal of Wuhan Institute of Chemical Technology, 1991, 0(3) |
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| Authors: | Fu Yuhua Huang Zhiqiang Wu Jiasheng and Lei Fusheng |
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| Abstract: | The determination of the sensitive coefficient a in magnetic method is discussed. It is shown that it is improper to calculate the stress round the weld bead with the value of a for the mother material. Similarly,in mathar method,the mechanical properties of the mother material cannot be used for the same purpose as mentioned above Theoretically,the angles 01 and 02 are equal. However,the measurement shows that they are different . Therefore,the measured values for them should be used. |
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| Keywords: | : Weld 1 Residual stress j Measurement I Magnetic method Mathar method |
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