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考虑膨胀效应的UH模型及其有限元实现

罗汀 张盼盼 姚仰平 刘月妙 陈亮 曹胜飞

罗汀, 张盼盼, 姚仰平, 等 . 考虑膨胀效应的UH模型及其有限元实现[J]. 北京航空航天大学学报, 2016, 42(1): 13-20. doi: 10.13700/j.bh.1001-5965.2015.0069
引用本文: 罗汀, 张盼盼, 姚仰平, 等 . 考虑膨胀效应的UH模型及其有限元实现[J]. 北京航空航天大学学报, 2016, 42(1): 13-20. doi: 10.13700/j.bh.1001-5965.2015.0069
LUO Ting, ZHANG Panpan, YAO Yangping, et al. UH model considering expansion of soils and its finite element implementation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 13-20. doi: 10.13700/j.bh.1001-5965.2015.0069(in Chinese)
Citation: LUO Ting, ZHANG Panpan, YAO Yangping, et al. UH model considering expansion of soils and its finite element implementation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 13-20. doi: 10.13700/j.bh.1001-5965.2015.0069(in Chinese)

考虑膨胀效应的UH模型及其有限元实现

doi: 10.13700/j.bh.1001-5965.2015.0069
基金项目: 国家"973"计划(2014CB047001);国家自然科学基金(51179003,11272031,51579005)
详细信息
    作者简介:

    罗汀女,博士,教授,博士生导师。主要研究方向:土的基本特性和本构模型研究。Tel.:13671128963E-mail:tluo@buaa.edu.cn

    通讯作者:

    罗汀,Tel.:13671128963E-mail:tluo@buaa.edu.cn

  • 中图分类号: TU43

UH model considering expansion of soils and its finite element implementation

Funds: National Basic Research Program of China (2014CB047001); National Natural Science Foundation of China (51179003,11272031,51579005)
  • 摘要: 超固结非饱和土统一硬化(UH)模型在分析超固结非饱和土问题中有广泛的适用性,其不仅可以使超固结状态下的湿化模拟更为合理,也能够反映超固结非饱和土的硬化、软化等特性。在超固结非饱和土本构模型的基础上,考虑土体团粒的吸水膨胀作用,提出了考虑膨胀效应的UH模型。该模型只比超固结非饱和土UH模型增加了一个参数,不仅能够描述普通加载路径下超固结膨润土的应力应变特性,还能反映其在湿化路径下的膨胀效应。基于有限元软件的二次开发平台,进行了考虑膨润土膨胀效应UH模型的有限元实现,并通过对三轴试验和膨胀力试验的数值模拟,验证了模型子程序的合理性。

     

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出版历程
  • 收稿日期:  2015-01-31
  • 刊出日期:  2016-01-20

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