| 杨明辉,赵明华,曹文贵.岩石损伤软化统计本构模型参数的确定方法[J].水利学报,2005,36(3):0345-0349 |
| 岩石损伤软化统计本构模型参数的确定方法 |
| Method for determining the parameters of statistical damage softening constitutive model for rock |
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| DOI： |
| 中文关键词: 统计损伤理论 本构模型 岩石软化 特征参量 |
| 英文关键词: statistical damage theory constitutive model rock softening characteristic parameters |
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| 中文摘要: |
| 本文探讨了岩石损伤软化统计本构模型参数与岩石软化变形破裂过程的应力应变全曲线的特征参量的理论关系，建立了本构模型参数新的确定方法。该方法通过常规试验所得到的峰值点的应力应变值即能确定整个本构模型的其它参数，再将峰值点的应力应变值与围压的关系进行拟合，即能将该模型推广成任意围压下的岩石损伤软化统计本构模型。试验表明，本文模型曲线能较好地反映岩石破裂的全过程。 |
| 英文摘要: |
| The relationships between parameters of statistical damage softening constitutive model and stress-strain characteristics in the failure process of rock are theoretically investigated. On this basis the method for determining the parameters is proposed. By using this method the parameters of the model can be determined according to the stress and strain at the peak point of the relationship curve obtained from routine test for rock. |
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