| 岩石材料应变软化模型及有限元分析 |
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| 引用本文： | 阎金安,张宪宏.岩石材料应变软化模型及有限元分析[J].岩土力学,1990,11(1):19-27. |
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| 作者姓名： | 阎金安 张宪宏 |
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| 作者单位： | 中科院武汉岩土力学所； 清华大学 北京； |
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| 摘 要： | 本文应用弹塑性理论,根据岩石的应力应变关系、峰值强度、残余强度和岩石材料的脆性特性,建立了理想的应变软化模型,并提出了相应的加载准则。文中提出的模型计算方便,所用参数简单,物理意义明确,便于编制有限元程序。
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| 关 键 词： | 岩石材料 应变软化模型 有限元分析 加载准则 屈服函数 |
Strain Softening Model of Rock Material and Associated Finite Element Analysis |
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| Yan Jinan,Zhang Xianhong.Strain Softening Model of Rock Material and Associated Finite Element Analysis[J].Rock and Soil Mechanics,1990,11(1):19-27. |
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| Authors: | Yan Jinan Zhang Xianhong |
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| Abstract: | Based on the stress-strain relationship and the properties of peak strength, residual strength, and brittleness of rock material, a perfect strain-softening model and related loading criteria are proposed by using the theory of elasto-plasticity. The physical concepts of this model are very clear with simple parameters, which is convenient for numerical analysis including finite element analysis. |
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