| 双相介质界面裂纹的J积分守恒性研究 |
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| 引用本文： | 代晶辉. 双相介质界面裂纹的J积分守恒性研究[J]. 哈尔滨商业大学学报(自然科学版), 2008, 24(4): 429-431 |
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| 作者姓名： | 代晶辉 |
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| 作者单位： | 哈尔滨商业大学,土木与制冷工程学院,哈尔滨,150028 |
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| 摘 要： | 通过证明得到了双相介质层状复合材料中的任意一种均质材料的回路J积分等于零;证明了在双相介质层状复合材料的界面上裂纹,以及平行界面的裂纹尖端的围道J积分是守恒的,为J积分表征多相材料的断裂韧性提供了理论依据.利用有限元的方法对给出的J积分,进行数值验证.
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| 关 键 词： | 双相介质 界面 裂纹尖端 J积分守恒性 |
Study on J-integration conservation of crack in porous media interface |
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| DAI Jing-hui. Study on J-integration conservation of crack in porous media interface[J]. Journal of Harbin University of Commerce :Natural Sciences Edition, 2008, 24(4): 429-431 |
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| Authors: | DAI Jing-hui |
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| Affiliation: | DAI Jing-hui(School of Civil and Refrigeration Engineering , Harbin University of Commerce, Harbin 150028, China) |
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| Abstract: | This paper proves ous media laminar composite face and parallel interface is characterizing fracture toughn tion is proved numerically that loop J-integration of random hom equals zero. The closed J-integration ogeneous material in por- of crack tip at the inter- conservation. The analysis provides a theoretical foundation for ess property of heterogeneous material. J-integration conserva- by the finite element method. |
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| Keywords: | porous media interface crack tip J-integration conservation |
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