| 不同尺寸岩石在点荷载作用下应力记忆效应的数值模拟 |
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| 引用本文： | 刘明松,谢亮波.不同尺寸岩石在点荷载作用下应力记忆效应的数值模拟[J].金属矿山,2010,39(5):34-37. |
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| 作者姓名： | 刘明松 谢亮波 |
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| 作者单位： | 1.龙岩学院; 2.中钢集团马鞍山矿山研究院有限公司 |
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| 摘 要： | 利用岩石破裂过程数值模拟软件RFPA2D对5种高宽比岩石试件进行了点荷载循环加载模拟试验。试验结果表明,岩石试件进行点荷载试验具有尺寸效应。岩石试样高×宽为100mm×50mm时,岩石对点荷载作用的应力记忆效应最明显,与实验室试验的结果一致。
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| 关 键 词： | ,点荷载,,应力记忆效应,,尺寸效应 |
Numerical Simulation Research of Stress Memory Effect of Different Size Rocks under Point Load |
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| Liu Mingsong,Xie Liangbo.Numerical Simulation Research of Stress Memory Effect of Different Size Rocks under Point Load[J].Metal Mine,2010,39(5):34-37. |
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| Authors: | Liu Mingsong Xie Liangbo |
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| Affiliation: | 1.Longyan University;2.Sinosteel Maanshan Institute of Mining Research Co.，Ltd. |
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| Abstract: | The point-load-cyclic-loading-simulation tests on five specimens of different H/W ratios are made by using RFPA2D，that is，the rock failure process simulation software.Tests results showed that rock samples in point load tests have size effects，and that stress memory effect is more obvious on the samples of 100 mm× 50 mm (H × W).This is in accord with the results of laboratory tests，and of great significance for the research of rock point load. |
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| Keywords: | Point load Stress memory effect Size effect |
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