General point load weight function for semi-elliptical crack in finite thickness plates

被引：33

作者：

Ghajar, Rahmatollah ^{[1
]}

Googarchin, Hamed Saeidi ^{[1
]}

机构：

[1] KN Toosi Univ Technol, Dpt Mech Eng, Mech Properties Res Lab, Tehran, Iran

来源：

ENGINEERING FRACTURE MECHANICS | 2013年 / 109卷

关键词：

General point load weight function; Finite thickness plate; Surface crack; Two dimensional stress distribution; STRESS INTENSITY FACTORS; OPENING DISPLACEMENT APPROXIMATION; SURFACE CRACKS; LIMITATIONS; FIELDS;

D O I：

10.1016/j.engfracmech.2013.06.007

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

General point load weight function for semi-elliptical crack in finite thickness plates is derived. It is used to calculate stress intensity factors for any point along the crack front with the crack faces under two dimensional stress distributions. The comparison between the results obtained from the derived weight function and those available in literature is presented, indicating a good accuracy. In order to determine the pattern of crack growth, and to estimate fatigue life, this weight function can be easily used in plates as applied in industry under complicated stress fields such as residual stress field due to welding. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：33 / 44

页数：12

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