| 非均质结构裂纹的J积分守恒性的理论研究(Ⅰ) |
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| 引用本文： | 郭奇,由立臣,司玉兰,陈庆.非均质结构裂纹的J积分守恒性的理论研究(Ⅰ)[J].吉林化工学院学报,1997(1). |
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| 作者姓名： | 郭奇 由立臣 司玉兰 陈庆 |
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| 摘 要： | 用数学分析方法论证了焊缝区有垂直裂纹时J积分的守恒性，又用弹塑性有限元方法进行了数值验证．首次提出了J积分与路径有关的理论证明，为J积分在压力容器缺陷安全评定的应用提供了必要的依据．
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| 关 键 词： | J积分 焊接接头 压力容器 |
ON THE CONSERVATION OF J-INTEGRAL OF NON-HOMOGENEOUS CRACK |
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| Guo Qi, You Lichen, Si Yulan, Chen Qing.ON THE CONSERVATION OF J-INTEGRAL OF NON-HOMOGENEOUS CRACK[J].Journal of Jilin Institute of Chemical Technology,1997(1). |
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| Authors: | Guo Qi You Lichen Si Yulan Chen Qing |
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| Affiliation: | Department of Chemical Machinery |
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| Abstract: | The conservation of J-integral is proved with mathematical analysis method when there is vertical crack in the weld zone,and tested numerically with elastoplastic finite element method. The theoretical proof is first proposed that J-integral is interrelated with path, thus providing basis for the application of J-integral in the safety evaluation of the flaw of pressure container. |
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| Keywords: | J-integral welding joint pressure container |
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