A new method of plastic zone size determined based on maximum crack opening displacement

被引：36

作者：

Yi, Huang ^{[1
]}

Chen Jingjie ^{[1
]}

Gang, Liu ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Naval Architecture, Dalian 116024, Liaoning, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2010年 / 77卷 / 14期

关键词：

Plastic zone size; Maximum crack opening displacement; Center cracked plate; Finite element analysis; FINITE-ELEMENT-ANALYSIS; CLOSURE; STRESS; GROWTH; MODEL;

D O I：

10.1016/j.engfracmech.2010.06.026

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper presents a new method to determine the crack-tip plastic zone size (R-y) in the center cracked plate in tension. The maximum crack opening displacement (MCOD) is used to estimate R-y in this method. Based on the series of calculation results by finite element analysis, the explicit expression for the crack-tip plastic zone size versus MCOD is fitted by least square method. The expression enables to eliminate the influences of the yield stress of material, crack geometry, plate sizes and transverse stress. Therefore, the presented method of R-y determined by MCOD is suitable to any center crack finite plate of any material under uniaxial or biaxial tension. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2912 / 2918

页数：7

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