| 单边双裂纹模型及其J积分的守恒性 |
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| 引用本文： | 丁方,张敏,付翀.单边双裂纹模型及其J积分的守恒性[J].西安理工大学学报,2006,22(1):89-92. |
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| 作者姓名： | 丁方 张敏 付翀 |
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| 作者单位： | 西安理工大学,材料科学与工程学院,陕西,西安,710048 |
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| 摘 要： | 针对某些工程结构特点,设计了单边双裂纹模型。然后先从理论上证明了其结构J积分的守恒性,再以焊接接头为例,通过体现焊接接头的几个特征参数,从力学和几何不均匀性两方面给予有限元方法数值实验证明,从而为工程结构中类似的缺陷评定奠定基础。
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| 关 键 词： | 单边双裂纹 J积分 守恒性 有限元方法 |
| 文章编号： | 1006-4710(2006)01-0089-04 |
| 收稿时间： | 2005-09-21 |
| 修稿时间： | 2005年9月21日 |
Single-Edge Double-Crack Model and Conservation of J Integrate |
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| DING Fang,ZHANG Min,FU Chong.Single-Edge Double-Crack Model and Conservation of J Integrate[J].Journal of Xi'an University of Technology,2006,22(1):89-92. |
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| Authors: | DING Fang ZHANG Min FU Chong |
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| Abstract: | With an aim at some engineering structure features,a single-edge double-crack model is designed.And then,the conservation of its structure J integrate is proved in theory.Taking the welded joint for an example,several typical feature parameters indicating the welded joint are proved by numeral tests of the finite element method from two aspects of mechanical and geometrical un-uniformity,whereby laying a solid base for the defect assessment of similar engineering structure. |
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| Keywords: | single-edge double-crack J-integral conservation finite element method |
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