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基于均匀化方法的土工格栅等效本构关系研究
  • 期刊名称：大连理工大学学报, 49(03): 317-321, 2009. (EI收录)
  • 时间：0
  • 分类：TU432[建筑科学—岩土工程;建筑科学—土工工程]
  • 作者机构：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024
  • 相关基金：基金项目,国家自然科学基基金资助项目（10772035,10721062,10472019）;“九七三”国家重点基础研究规划资助项目（2005CB321704）;辽宁省中青年学术带头人基金资助项目.作者简介：
  • 相关项目：计算力学与工程科学计算
关键词： 土工格栅, 均匀化, 本构关系, geogrid , homogenization, constitutive relationship
中文摘要：

土工格栅在岩土、交通、水利等工程中发挥着重要作用．将土工格栅与土看做一种广义复合材料,选取恰当的代表单胞，采用基于周期结构多尺度渐近分析的均匀化技术，建立了预测弹性等效本构参数的数值计算模型．利用该模型，可方便合理地考虑各组分材料性质、尺寸对宏观等效弹性参数的影响。从而为土工格栅等效弹性参数的试验研究及土工格栅的设计提供有益的理论参考，其思路也可推广于格栅与土体宏观等效蠕变本构特性的预测．

英文摘要：

Geogrid plays an important role in geotechnical, transportation and water conservancy projects. Geogrid and soil are regarded as a kind of general composite material for which the representative cell is selected reasonably. A numerical model to evaluate equivalent elastic constitutive parameters is developed via a multi-scale asymptotic analysis for periodic structures-based homogenizing technology, ,and the effects of properties and sizes of component materials on the macro-equivalent elastic constitutive parameters can be taken into account conveniently. The work presented here may provide valuable reference for the further application of geogrid and help in the promotion of the forecast of the geogrid and soil macro-equivalent creep constitutive properties.

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