| 非局部应变软化破坏模型中的权函数 |
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| 引用本文： | 严更,丁方明.非局部应变软化破坏模型中的权函数[J].土木与环境工程学报,1995,17(1). |
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| 作者姓名： | 严更 丁方明 |
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| 作者单位： | 重庆建筑大学建筑工程学院 |
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| 摘 要： | 对在非局部应变软化破坏模型中起重要作用的权函数进行研究，导出其具体表达形式，并分析了它的性质，其中包括该权函数与非均质材料特征长度的关系。文中还给出了非局部应变软化破坏模型中非局部量的具体计算方法。权函数的选择对于建立较客观的非局部应变软化破坏模型并用数值方法分析非均质材料的破坏性能有重要意义。
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| 关 键 词： | 非局部应变软化破坏模型，权函数，非均质材料，特征长度 |
WEIGHTING FUNCTION IN NONLOCAL STRAIN SOFTENING DAMAGE MODEL |
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| Yan Geng,Ding Fangming.WEIGHTING FUNCTION IN NONLOCAL STRAIN SOFTENING DAMAGE MODEL[J].Journal of Civil and Environmental Engineering,1995,17(1). |
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| Authors: | Yan Geng Ding Fangming |
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| Affiliation: | Faculty of Civil Engineering |
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| Abstract: | In the paper,the weighting function is investigated which plays an importantpart in nonlocal strain softening damage model.Its expression is derived and behaviours including therelationship between the weighting function and the characteristic length of heterogeneous materialsare analyzed.The method for calculating monlocal quantities is also presented.Selecting of theweighting function has important significance for more objectively establishing nonlocal damagemodel and analysis of damage of heterogeneous materials by numerical methods. |
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| Keywords: | nonlocal strain sotening damage model weighting function heterogeneousmaterials characteristic length |
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