The peak stress method to estimate the mode I notch stress intensity factor in welded joints using three-dimensional finite element models

被引：56

作者：

Meneghetti, Giovanni ^{[1
]}

Guzzella, Carlo ^{[1
]}

机构：

[1] Univ Padua, Dept Ind Engn, I-35131 Padua, Italy

来源：

ENGINEERING FRACTURE MECHANICS | 2014年 / 115卷

关键词：

Peak stress; Finite element method; Notch-stress intensity factors; Welded joints; Fatigue assessment; FATIGUE ASSESSMENTS; T-JOINTS; K-I; CRACK; ALUMINUM; STEEL; PERFORMANCE; STRENGTH; BEHAVIOR;

D O I：

10.1016/j.engfracmech.2013.11.002

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The peak stress method is a simplified, FE-based technique to estimate the mode I and mode II Notch Stress Intensity Factors (NSIFs) at the tip of sharp V-notches or cracks. Then it is useful to readily assess the fatigue strength of fillet-welded joints failing from the weld toe or the weld root according to the local approach based on the NSIFs. Originally based on two-dimensional FE models, the PSM is extended here to be used with three-dimensional FE models, which are increasingly adopted in practical applications. Exact and approximate values of the mode I NSIF at the toe of cruciform and T butt- or fillet-welded tubular joints are calculated and compared successfully. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：154 / 171

页数：18

共 31 条

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[Anonymous], P 2 INT C FRACT DAM

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