[1]庞桂珍,宋 飞.一种岩石的损伤流变模型[J].西安科技大学学报,2008,(03):429-433.[doi:10.3969/j.issn.1672-9315.2008.03.007]
 PANG Gui-zhen,SONG Fei.A damage rheological constitutive model for rocks[J].Journal of Xi'an University of Science and Technology,2008,(03):429-433.[doi:10.3969/j.issn.1672-9315.2008.03.007]
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一种岩石的损伤流变模型()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2008年03期
页码:
429-433
栏目:
出版日期:
2008-09-30

文章信息/Info

Title:
A damage rheological constitutive model for rocks
文章编号:
1672-9315(2008)03-0429-05
作者:
庞桂珍1宋 飞2
1.长安大学 资源学院,陕西 西安 710054; 2.长安大学 地测学院,陕西 西安 710054
Author(s):
PANG Gui-zhen1SONG Fei2
1.College of Earth Science and Land Resourses, Chang'an University, Xi'an 710054, China; 2.College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054, China
关键词:
流变 统计损伤 损伤门槛 非线性
Keywords:
rheology statistical damage damage threshold nonlinearity
分类号:
TU452
DOI:
10.3969/j.issn.1672-9315.2008.03.007
文献标志码:
A
摘要:
根据石膏角砾岩的蠕变特性,建立了石膏角砾岩的粘弹塑性流变组合模型;在此基础上,采用统计损伤理论,并考虑了损伤门槛的影响,建立了考虑损伤门槛的统计损伤本构方程;根据应变等效原理,建立了石膏角砾岩的损伤流变模型.通过试验验证,理论计算结果与石膏角砾岩蠕变试验结果吻合较好,表明所提出的损伤流变模型可以较好的描述石膏角砾岩的非线性流变.
Abstract:
The creep test results of gypsum breccia show that gypsum breccia displays the creep properties of nonlinearity and acceleration.In the light of creep characteristics of gypsum breccias, a multiple rheological mechanics model is set up. Based on the model, from hypothesis of strain equivalence, the damage rheological constitutive model is established with statistical damage theory considering stress damage threshold. The calculated results of the model agree well with creep test results. This indicates that the damage rheological constitutive model can effectively describe the nonlinear rheological property of gypsum breccias. It is concluded that statistical damage theory is effective in studying nonlinear rheology of rocks.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2007-05-10 责任编辑:杨忠民 作者简介:庞桂珍(1954-),女,湖北黄石人,副教授,主要从事旅游地学与地质工程的教学与科研工作.
更新日期/Last Update: 2008-09-30