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| 物理细胞自动机与岩石弹-脆-塑性性质的细观机制研究 | |
| 引用本文： | 周辉,冯夏庭,谭云亮,王泳嘉.物理细胞自动机与岩石弹-脆-塑性性质的细观机制研究[J].岩土力学,2002,23(6):678-682. |
| 作者姓名： | 周辉 冯夏庭 谭云亮 王泳嘉 |
| 作者单位： | 1. 中国科学院武汉岩土力学研究所岩土力学重点实验室,湖北,武汉,430071;中国科学院力学研究所,非线性力学国家重点实验室(LNM),北京,100080 2. 中国科学院武汉岩土力学研究所岩土力学重点实验室,湖北,武汉,430071 3. 山东科技大学资源与环境工程学院,山东,泰安,271029 4. 东北大学资源与土木工程学院,辽宁,沈阳,110004 |
| 基金项目： | 国家自然科学基金项目(50179034)，中国科学院力学研究所非线性力学国家重点实验室(LNM)开放研究课题基金资助的课题. |
| 摘 要： | 基于能量守恒定律和岩石的基本力学性能，进一步发展了由作者提出的一种用于模拟岩石非线性破坏演化的新方法-物理细胞自动机（PCA）模型。该模型通过岩石内部（或细观）基元（或细胞）间简单的随机相互作用的综合结果来反映岩石系统整体的稳定宏观力学现象。利用PCA模型，研究了形成不同岩石本构关系的本质影响因素，揭示了岩石弹-脆-塑性性质的细观机制，为进一步认知岩石等非均质材料的力学性质提供了一种新的理论方法。同时，其研究思路和结论也可为微观和细观力学的数值模拟方法及新型复合材料的设计提供重要的借鉴。 |
| 关 键 词： | 物理细胞自动机 岩石的弹－脆－塑性 细观机制 |
| 文章编号： | 1000-7598-(2002)06-0678-05 |
| 收稿时间： | 2002-04-09 |
| 修稿时间： | 2002年4月9日 |
Research on physical cellular automata and microscopical mechanism of elasticity-brittleness-plasticity of rock |
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| ZHOU Hui,FENG Xia-ting,TAN Yun-liang,WANG Yong-jia.Research on physical cellular automata and microscopical mechanism of elasticity-brittleness-plasticity of rock[J].Rock and Soil Mechanics,2002,23(6):678-682. | |
| Authors: | ZHOU Hui FENG Xia-ting TAN Yun-liang WANG Yong-jia |
| Institution: | 1. Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2. State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China; 3. School of Resources and Environment, Shandong University of Science and Technology, Tai’an 271019, China; 4. School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China |
| Abstract: | Based on the energy conservation law and mechanical properties of rock, the physical cellular automat (PCA), a new model set up by authors to simulate the nonlinear evolution of rock failure, is developed; and the PCA model can be used to simulate the macroscopic mechanical behaviors of rock system caused by the compositive results of the simple reciprocity among the partial cells in the rock. Entitative influence on the constitutive relation of rock is studied by way of PCA; and micro-mechanism of elasticity, brittleness and plasticity of rock is profoundly revealed. The ideas and conclusions of the paper can be used as an important reference to numerical simulation of meso-mechanics and design of new composite materials. |
| Keywords: | physical cellular automata elasticity brittleness and plasticity of rock micro-and meso-mechanism |
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