A NEW AUTOMATED STRETCHING FINITE ELEMENT METHOD FOR 2D CRACK PROPAGATION

被引：1

作者：

Bentahar, Mohammed ^{[1
]}

Benzaama, Habib ^{[1
]}

Bentoumi, Mohamed ^{[2
]}

Mokhtari, Mohamed ^{[1
]}

机构：

[1] Ecole Natl Polytech, Mech Engn Dept, Lab Appl Biomech & Biomat, ENPO, Oran, Algeria

[2] Ferhat Abbas Univ, Inst Opt & Precis Mech, Setif, Algeria

来源：

JOURNAL OF THEORETICAL AND APPLIED MECHANICS | 2017年 / 55卷 / 03期

基金：

中国国家自然科学基金;

关键词：

2D crack propagation; FEM; stretching finite element method (SFEM); stress intensity factor (SIF); GROWTH; SIMULATION;

D O I：

10.15632/jtam-pl.55.3.869

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This work presents a study of crack propagation with a new 2D finite element method with the stretching of the mesh. This method affects at each propagation step new coordinates of each element node of the mesh. The structure is divided to areas and each area has its own coordinate formulas. A program in FORTRAN allows us to create a parametric mesh, which keeps the same number of nodes and elements during different steps of crack propagation. The nodes are stretched using the criterion of maximum circumferential stress (MCS). The fracture parameters such as stress intensity factors in modes I and II and the orientation angles are calculated by solving the problem by the finite element code ABAQUS.

引用

页码：869 / 881

页数：13

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