| 岩石蠕变扩容与损伤变量本构关系 |
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| 引用本文： | 陈祖安.岩石蠕变扩容与损伤变量本构关系[J].地球物理学进展,1993(4). |
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| 作者姓名： | 陈祖安 |
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| 作者单位： | 中国科学院地球物理研究所 北京 |
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| 摘 要： | 首先介绍了在不同压力组合下关于油母页岩的蠕变实验.实验表明,在瞬时扩容后,蠕变过程中的依赖时间的扩容持续增长.在引入反映岩石扩容程度时的损伤变量后,建立了损伤演化方程和本构方程以描述蠕变扩容的变化规律.最后,数值模拟了体应变与时间关系,与实验结果基本一致.
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| 关 键 词： | 蠕变 扩容 损伤 本构方程 |
CREEP DILATANCY ON ROCK AND CONSTITUTIVE EQUATION WITH DAMAGE VARIABLE |
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| Chen Zuan.CREEP DILATANCY ON ROCK AND CONSTITUTIVE EQUATION WITH DAMAGE VARIABLE[J].Progress in Geophysics,1993(4). |
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| Authors: | Chen Zuan |
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| Abstract: | The test results of creep on oil shale under various stresses are given.It is shown that the dilatantstrain increases with time in the creep tests.By introducing the damage variable,the damage growth equa-tion and constitutive equation are established to describe behavior of dilatancy in rocks during creep.Thenumerical results are consistant with the results of the tests. |
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| Keywords: | Creep Dilatancy Damage Constitutive equation |
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