Finite element analysis of three-dimensional cracks by connecting global and local meshes

Hyean Ho Lim; Hyun Gyu Kim

doi:10.1016/j.engfracmech.2023.109304

Finite element analysis of three-dimensional cracks by connecting global and local meshes

Hyean Ho Lim, Hyun Gyu Kim

Dept. of Mechanical & Automotive Engineering

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In this paper, a novel method for the finite element analysis of three-dimensional cracks is developed by connecting global and local meshes using polyhedral elements. A local mesh including a fine spider-web mesh around the crack tip is arbitrary placed in a coarse global mesh of hexahedral elements. Polyhedral elements are generated by modifying the hexahedral elements at the interface between global and local meshes. The present polyhedral elements provide a seamless connection between global and local meshes. Numerical results show that the present method can be effectively used to analyze three-dimensional cracks by connecting global and local meshes using polyhedral elements.

Original language	English
Article number	109304
Journal	Engineering Fracture Mechanics
Volume	286
DOIs	https://doi.org/10.1016/j.engfracmech.2023.109304
State	Published - 27 Jun 2023

Keywords

Finite element method
Global and local meshes
Polyhedral elements
Stress intensity factors
Three-dimensional cracks

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10.1016/j.engfracmech.2023.109304

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title = "Finite element analysis of three-dimensional cracks by connecting global and local meshes",

abstract = "In this paper, a novel method for the finite element analysis of three-dimensional cracks is developed by connecting global and local meshes using polyhedral elements. A local mesh including a fine spider-web mesh around the crack tip is arbitrary placed in a coarse global mesh of hexahedral elements. Polyhedral elements are generated by modifying the hexahedral elements at the interface between global and local meshes. The present polyhedral elements provide a seamless connection between global and local meshes. Numerical results show that the present method can be effectively used to analyze three-dimensional cracks by connecting global and local meshes using polyhedral elements.",

keywords = "Finite element method, Global and local meshes, Polyhedral elements, Stress intensity factors, Three-dimensional cracks",

author = "Lim, \{Hyean Ho\} and Kim, \{Hyun Gyu\}",

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AU - Lim, Hyean Ho

AU - Kim, Hyun Gyu

PY - 2023/6/27

Y1 - 2023/6/27

N2 - In this paper, a novel method for the finite element analysis of three-dimensional cracks is developed by connecting global and local meshes using polyhedral elements. A local mesh including a fine spider-web mesh around the crack tip is arbitrary placed in a coarse global mesh of hexahedral elements. Polyhedral elements are generated by modifying the hexahedral elements at the interface between global and local meshes. The present polyhedral elements provide a seamless connection between global and local meshes. Numerical results show that the present method can be effectively used to analyze three-dimensional cracks by connecting global and local meshes using polyhedral elements.

AB - In this paper, a novel method for the finite element analysis of three-dimensional cracks is developed by connecting global and local meshes using polyhedral elements. A local mesh including a fine spider-web mesh around the crack tip is arbitrary placed in a coarse global mesh of hexahedral elements. Polyhedral elements are generated by modifying the hexahedral elements at the interface between global and local meshes. The present polyhedral elements provide a seamless connection between global and local meshes. Numerical results show that the present method can be effectively used to analyze three-dimensional cracks by connecting global and local meshes using polyhedral elements.

KW - Finite element method

KW - Global and local meshes

KW - Polyhedral elements

KW - Stress intensity factors

KW - Three-dimensional cracks

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VL - 286

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

M1 - 109304

ER -

Finite element analysis of three-dimensional cracks by connecting global and local meshes

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Keywords

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