| 考虑损伤效应的冻粘土蠕变本构理论研究 |
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| 引用本文： | 李栋伟,汪仁和.考虑损伤效应的冻粘土蠕变本构理论研究[J].煤田地质与勘探,2007,35(1):53-55. |
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| 作者姓名： | 李栋伟 汪仁和 |
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| 作者单位： | 安徽理工大学土木工程系, 安徽 淮南 232001 |
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| 摘 要： | 用简单的屈服函数作为冻土塑性损伤变量,对西源模型中的粘塑性蠕变量进行损伤修进。通过相关推导得到了冻土粘弹塑性损伤本构方程。通过用户子程序将此本构模型嵌入到大型商业有限元软件ADINA中。有限元计算结果表明:考虑损伤的冻土本构模型能较好的模拟加速蠕变阶段,可用于深井工程实践。
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| 关 键 词： | 冻土 粘弹塑损伤 本构方程 屈服函数 |
| 文章编号： | 1001-1986（2007）01-0053-03 |
| 收稿时间： | 2006-07-18 |
| 修稿时间： | 2006-07-18 |
Study on frozen soil creep constitutive of theory accounting for damage |
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| LI Dong-wei,WANG Ren-he.Study on frozen soil creep constitutive of theory accounting for damage[J].Coal Geology & Exploration,2007,35(1):53-55. |
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| Authors: | LI Dong-wei WANG Ren-he |
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| Institution: | Department of Civil Engineering of Anhui University of Science and Technology, Huainan 232001, China |
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| Abstract: | The simple yield standard is used to determine the damage variables frozen soil,therefore Xiyuan Model viscoplastic creep is repaired.The constitutive function of the viscoelastic plastic damage-coupling is deduced.The viscoelastic plastic damage-coupling constitutive model for geo-materials is embeded into the commercial FEM software ADINA as a user's subroutine.FEM analysizing suggest that the model is of the feature of the non-linear accelerative creep frozen soil,and can be used for engineering practice. |
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| Keywords: | frozen soil viscoelastic plastic damage constitutive function simple yield function |
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