| 复杂加载下统一硬化模型的有限元应用 |
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| 引用本文： | 罗汀,秦振华,姚仰平,万征. 复杂加载下统一硬化模型的有限元应用[J]. 工业建筑, 2011, 41(9): 8-11,48 |
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| 作者姓名： | 罗汀 秦振华 姚仰平 万征 |
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| 作者单位： | 北京航空航天大学交通科学与工程学院,北京,100191 |
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| 基金项目： | 国家自然科学基金项目(50879001,10872016); 教育部博士点基金项目(20091102110030) |
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| 摘 要： | 等幅循环加卸载条件下,经典弹-塑性模型无法描述再加载过程中土体的塑性变形。统一硬化模型参数与Cam-clay模型完全相同,不仅能够描述土的剪缩、剪胀、硬化、软化和应力路径依赖性等特性,而且能够描述循环加载条件下再加载过程中土体发生的塑性变形。通过将UH模型推广应用到复杂加载情况,并进行循环荷载作用下地基承载力有限元的模...
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| 关 键 词： | 弹-塑性模型 循环加载 地基承载力 有限元分析 |
APPLICATION OF UNIFIED HARDENING MODEL TO FINITE ELEMENT ANALYSIS UNDER COMPLEX LOADING |
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| Luo Ting Qin Zhenhua Yao Yangping Wan Zheng. APPLICATION OF UNIFIED HARDENING MODEL TO FINITE ELEMENT ANALYSIS UNDER COMPLEX LOADING[J]. Industrial Construction, 2011, 41(9): 8-11,48 |
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| Authors: | Luo Ting Qin Zhenhua Yao Yangping Wan Zheng |
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| Affiliation: | Luo Ting Qin Zhenhua Yao Yangping Wan Zheng(School of Transportation Science and Engineering,Beihang University,Beijing 100191,China) |
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| Abstract: | Under the condition of undiminished cyclic loading,the plastic deformation of soil can not be described by using classical elastoplastic models in the reloading process.The UH model can be used to describe many characteristics of clay well,including stress dilatancy,strain hardening and softening,and path dependency behaviour.It can also be used to describe the plastic deformation in the reloading process under the condition of cyclic loading.The UH model was applied under complex stress path condition.The ... |
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| Keywords: | elastoplastic model cyclic loading bearing capacity of foundation FEM |
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