Fatigue life of multi-spot welded structures

被引：0

作者：

Salvini, Pietro ^{[1
]}

Vivio, Francesco ^{[1
]}

Vullo, Vincenzo ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Dept Mech Engn, Rome, Italy

来源：

ADVANCES IN FRACTURE AND DAMAGE MECHANICS VI | 2007年 / 348-349卷

关键词：

spot welds; progressive damage; jointed structures; finite element modelling;

D O I：

10.4028/www.scientific.net/KEM.348-349.249

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A procedure that makes use of a conventional stress value (ERS) is applied to spot welded joints. The ERS can be evaluated for every spot weld of the structural model. Through the use of ERS-N curves, fatigue data performed on different joint geometries can be successfully mixed together. One of the main aspects is that progressive damage deeply influences fatigue behaviour, so that a simple numerical solution neglecting accumulated damage is unable to foresee the whole fatigue life. In the present paper the method has been applied to many experimental results: it is shown that a unique criterion is able to deal with several different structures and materials.

引用

收藏

页码：249 / +

页数：2

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