| 边缘检测法预测非均匀岩石材料的破裂 |
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| 引用本文： | 逄焕东,姜福兴,张兴民.边缘检测法预测非均匀岩石材料的破裂[J].岩土力学,2004,25(Z2):113-116. |
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| 作者姓名： | 逄焕东 姜福兴 张兴民 |
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| 作者单位： | 山东科技大学,山东,泰安,271019 |
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| 基金项目： | 国家自然科学基金重大国际合作项目(50320120001)的面上基金项目(50074021) |
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| 摘 要： | 由于岩石存在内部缺陷,绝大多数岩石材料都具有非均质性.这种不均质性导致了材料在受到外部荷载时产生局部裂纹并且在得到能量后继续生长发育,最后使材料发生破坏.讨论了用边缘检测方法求解岩石材料在加载过程中可能发生的破裂发展.根据某一既定概率密度函数构造了一种岩石材料模拟加载,并且根据边缘检测方法得到了可能的破裂结果.对已有实验结果图象进行检测,证实边缘检测能够预测出岩石试件加载可能发生破裂的区域,结果基本正确.
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| 关 键 词： | 非均质性 边缘检测 图象处理 灰度梯度 |
| 文章编号： | 1000-7598-(2004)增-0113-04 |
| 修稿时间： | 2004年4月30日 |
Prediction of nonhomogeneous material's cracking process by edge detecting method |
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| PANG Huan-dong,JIANG Fu-xing,ZHANG Xing-min.Prediction of nonhomogeneous material''''s cracking process by edge detecting method[J].Rock and Soil Mechanics,2004,25(Z2):113-116. |
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| Authors: | PANG Huan-dong JIANG Fu-xing ZHANG Xing-min |
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| Abstract: | Most rock materials are nonhomogeneous because of inner defects. It is this nonhomogenization that caused crack producing, growing and at last whole rock material's collapsing when energy is supplied enough continuously. The paper discusses the cracks' development in rock mass by edge detecting methods during loading process. Artificial material has been constructed according to a probability density function. By simulated loading, the rock sample's possible cracking area has been worked out. Dealing with the actual image result, it is proved that edge detecting methods can predict the would-be cracking area in rock sample and the result is generally correct. |
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| Keywords: | nonhomogeneity edge detection image processing gray gradient |
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