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可离散有限元法模拟混凝土构件破坏过程

袁丽 徐春晖 杨薇

中国农业大学学报2011,Vol.16Issue(1):118-123,6.
中国农业大学学报2011,Vol.16Issue(1):118-123,6.

可离散有限元法模拟混凝土构件破坏过程

FE-DEM simulation of failure process of concrete specimens

袁丽 1徐春晖 1杨薇1

作者信息

  • 1. 中国农业大学,理学院,北京,100083
  • 折叠

摘要

Abstract

With Munjiza's 2-d code Y2D based on the so-called combined finite-discrete element method (FE/DE), two examples,i.e.rupturing of a concrete beam under transverse impact and fracturing of a concrete column under axial impact,were simulated.It illustrated that, the cracking pattern in the former example is coincided with the high stress bands in the contour chart predicted by ANSYS, and the patterns of cracking, crack propagation, fracturing and multifracturing of the column in the later example were in general rational.Thus it is verified that the FE/DE method enables to predict the process from a solid continuum to discontinuum.Limitations of the code were also discussed.

关键词

混凝土/破坏/有限元/离散元

分类

数理科学

引用本文复制引用

袁丽,徐春晖,杨薇..可离散有限元法模拟混凝土构件破坏过程[J].中国农业大学学报,2011,16(1):118-123,6.

基金项目

国家自然科学基金资助项目(10872214) (10872214)

中国农业大学学报

OA北大核心CSCDCSTPCD

1007-4333

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