| 基于能量耗散定义损伤变量的方法 |
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| 引用本文： | 金丰年,蒋美蓉,高小玲.基于能量耗散定义损伤变量的方法[J].岩石力学与工程学报,2004,23(12):1976-1980. |
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| 作者姓名： | 金丰年 蒋美蓉 高小玲 |
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| 作者单位： | 解放军理工大学工程兵工程学院,南京,210007 |
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| 摘 要： | 基于对材料变形中的本构能及耗散能的认识，依据循环加载计算耗散能，从能量耗散角度定义材料的损伤变量，并给出了损伤变量的理论计算公式及损伤阈值的确定方法，研究了相关试验结果的损伤扩展规律。
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| 关 键 词： | 岩石力学 本构能 耗散 损伤 |
| 文章编号： | 1000-6915(2004)12-1976-05 |
| 收稿时间： | 2003-3-28 |
| 修稿时间： | 2003-5-30 |
DEFINING DAMAGE VARIABLE BASED ON ENERGY DISSIPATION |
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| Jin Fengnian,Jiang Meirong,Gao Xiaoling.DEFINING DAMAGE VARIABLE BASED ON ENERGY DISSIPATION[J].Chinese Journal of Rock Mechanics and Engineering,2004,23(12):1976-1980. |
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| Authors: | Jin Fengnian Jiang Meirong Gao Xiaoling |
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| Abstract: | Constitutive energy and dissipation energy in material deformation are analyzed. Dissipation energy is calculated according to cycling loading test. A formula of damage definition in theory is suggested,and the calculation method of damage variable is given as well. The rule of damage development is studied in tests. |
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| Keywords: | rock mechanics constitutive energy dissipation damage |
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