| 脆性岩石断裂破坏机理的边界配位法分析 |
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| 引用本文： | 谢和平,朱哲明,范天佑.脆性岩石断裂破坏机理的边界配位法分析[J].力学学报,1998,30(2):238-246. |
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| 作者姓名： | 谢和平 朱哲明 范天佑 |
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| 作者单位： | 中国矿业大学北京研究生部分形力学研究所 |
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| 基金项目： | 首届国家杰出青年科学基金,国家教委跨世纪优秀人才基金 |
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| 摘 要： | 针对裂纹表面承受载荷时的应力条件，提出了新的应力函数，该应力函数对于各种裂纹模型、各种边界条件、各种边界形状、裂纹表面自由或承受均布载荷等均适用．并利用边界配位法，计算了在压缩载荷下，岩石内部裂纹的应力强度因子（ＳＩＦ），给出了关于岩石断裂破坏的一些新结论
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| 关 键 词： | 边界配位法 裂纹表面载荷 岩石断裂 SIF |
THE ANALYSIS OF FRACTURE OF BRITTLE ROCK MATERIAL BY USING THE BOUNDARY COLLOCATION METHOD 1) |
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| Xie Heping,Zhu Zheming,Fan Tianyou.THE ANALYSIS OF FRACTURE OF BRITTLE ROCK MATERIAL BY USING THE BOUNDARY COLLOCATION METHOD 1)[J].chinese journal of theoretical and applied mechanics,1998,30(2):238-246. |
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| Authors: | Xie Heping Zhu Zheming Fan Tianyou |
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| Institution: | Xie Heping Zhu Zheming Fan Tianyou * |
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| Abstract: | Based on the conceptions of the microcrack controlling fracture and asymptotic failure, Griffith proposed the theory of the material brittle fracture in 1921. The underground rock masses are generally subjected tocompressive loading, consequently, the cracks in rock masses are forced to be closed and the crack surfaces are subjected to the loading. Maclintock and Wash established a modified Griffith Maximum Tensile Stress Theory in 1924, which only inspected the friction force τ n=νσ x(ν is the fr... |
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| Keywords: | boundary collocation method crack surface loading fracture of rock material stress intensity factor |
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