| 基于损伤理论的多孔介质动力解析 |
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| 引用本文： | 赵纪生,陶夏新.基于损伤理论的多孔介质动力解析[J].湖南科技大学学报(自然科学版),2001,16(4):48-54. |
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| 作者姓名： | 赵纪生 陶夏新 |
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| 作者单位： | 中国地震局工程力学研究所, |
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| 摘 要： | 介绍了多孔介质连续化方法和连续介质损伤力学研究的一般方法.采用宏、细观相连接的损伤模型,描述了多孔介质的骨架刚度和流体通道演变过程,在连续介质力学守恒定律的基础上,推出了非饱和土的动力方程.进而,可方便地退化为饱和多孔介质的动力方程和一维固结方程.图3,参11.
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| 关 键 词： | 多孔介质 损伤力学 非饱和土 饱和土 |
| 文章编号： | 1000-9930(2001)04-0048-07 |
| 修稿时间： | 2001年1月8日 |
Damage theory based dynamic analysis of porous media |
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| ZHAO Ji-sheng,TAO Xia-xin.Damage theory based dynamic analysis of porous media[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2001,16(4):48-54. |
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| Authors: | ZHAO Ji-sheng TAO Xia-xin |
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| Abstract: | In this paper, a method of porous media dispersed and theory of damage in continuom media mechanics are presented. The procedures in which the soild-skeleton stiffness degeneration of porous media and channel diversification of liquid movement are described by linking macro- and micro-mechanics of damage (the crack and void ratio) model. The model can be derived from REV(representative elementary volume) finite element analysis and experiment data. On the basis of conservation equation of continuum medium mechanics, the dynamic equation group of unsaturated soil is derived. Then the dynamic equation of saturated soil and one dimension consolidation equation can be degenerated easily.3figs.,11refs. |
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| Keywords: | porous media damage mechanics unsaturated soil saturated soil |
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