有限元法
蒙特卡罗方法
离散化
断裂力学
材料科学
结构工程
概率密度函数
圆柱
机械
几何学
数学分析
数学
工程类
复合材料
物理
统计
作者
Kenji Oguni,Lalith Wijerathne,Tomoo Okinaka,Muneo Hori
标识
DOI:10.1016/j.mechmat.2009.07.003
摘要
This paper presents the formulation of PDS-FEM (particle discretization scheme finite element method) in three dimensional setting and Monte-Carlo simulation of crack propagation by PDS-FEM. The probability density function of the crack paths in a plate with two parallel initial cracks located in an anti-symmetric manner is computed in order to evaluate the statistical and spatial distribution of the crack paths, and it is shown that the crack path in an ideally homogeneous plate is unstable. The simulation results are compared with experimental data. Besides, Monte-Carlo simulation of crack propagation in a heterogeneous elasto-plastic cylinder (as a simplified model of concrete) under uniaxial tension has been carried out and its statistical behavior is discussed.
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