[1]谢卫红,李顺才,高 峰.岩石热损伤-力耦合能量破坏准则研究[J].西安科技大学学报,2007,(03):341-346.
 XIE Wei-hong,LI Shun-cai,GAO Feng.Energy fracture criterion of thermal damage-mechanical coupling[J].Journal of Xi'an University of Science and Technology,2007,(03):341-346.
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岩石热损伤-力耦合能量破坏准则研究()
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2007年03期
页码:
341-346
栏目:
出版日期:
2007-09-29

文章信息/Info

Title:
Energy fracture criterion of thermal damage-mechanical coupling
文章编号:
1672-9315(2007)03-0341-06
作者:
谢卫红12李顺才2高 峰2
1.徐州空军学院 机场工程系,江苏 徐州 221000; 2.中国矿业大学 理学院,江苏 徐州 221008
Author(s):
XIE Wei-hong12LI Shun-cai2 GAO Feng2
1. Dept. of Airport Engineering, Xuzhou Airforce Logistic Institute, Xuzhou 221000,China; 2.Science and Technology College, China University of Mining and Technology, Xuzhou 221008,China
关键词:
SEM实时实验 损伤 能量 准则 热损伤-力耦合
Keywords:
SEM real-time experiment fracture criterion thermal damage-mechanical coupling
分类号:
TD 315
文献标志码:
A
摘要:
通过先升温后加载、先加载后升温的实验研究,论证了加载和升温历史对材料损伤破坏的影响。采用连续损伤力学方法,研究了岩石材料在变温环境下的热损伤破坏问题,基于能量理论推导出材料在同时考虑温度、载荷和损伤耦合效应的计算材料损伤余能释放率的余能函数。根据损伤余能释放率,建立了岩石热损伤破坏准则。指出研究岩石在温度和机械载荷作用下的损伤破坏行为,应考虑热损伤-力耦合效应。
Abstract:
From the experiments of changing the sequence of heating and loading, it draws a conclusion that the history of heating and loading have an effect on damage fracture of material. It analyzes the problem of rock's damage when temperature changes using the method of continuous damage mechanics and makes out the surplus energy function of damage surplus energy release rate of material damage on the basis of energy theory considering temperature,loading and damage coupling effect. Rock's thermal fracture rules have been built up with damage surplus energy release rate and the problem of rock's thermal damage fracture deformation were studied under heating and loading. It point out that rock's damage fracture under heating and loading is a kind of thermo damage-mechanical coupling nonlinear effect.

参考文献/References:

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[12] 刘亚晨,刘泉声,吴玉山,等. 核废料贮库围岩介质不可逆过程热力学和热弹性[J]. 岩石力学与工程学报, 2000, 19(3): 361-365.
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备注/Memo

备注/Memo:
收稿日期:2006-09-20 基金项目:国家重点基础研究发展规划973项目(2002CB412705)和创新群体项目(50221402) 作者简介:谢卫红(1962-),女,江西赣州人,博士,教授,主要从事防护工程、岩石损伤与断裂破坏的研究.
更新日期/Last Update: 2007-09-29