Fatigue strength of HFMI treated structures under high R-ratio and variable amplitude loading

被引：21

作者：

Mikkola, Eeva ^{[1
]}

Dore, Matthew ^{[2
]}

Khurshid, Mansoor ^{[3
]}

机构：

[1] Aalto Univ, Dept Appl Mech, Puumiehenkuja 5 A, Espoo 02150, Finland

[2] TWI, Integr Management Grp, Cambridge CB21 6AL, England

[3] Royal Inst Technol, Dept Aeronaut & Vehicle Engn, SE-10044 Stockholm, Sweden

来源：

FATIGUE DESIGN 2013, INTERNATIONAL CONFERENCE PROCEEDINGS | 2013年 / 66卷

关键词：

High frequency mechanical impact (HFMI); Fatigue; Stress relaxation; Mean stress; Variable amplitude loading; FREQUENCY MECHANICAL IMPACT; WELDED-JOINTS; BEHAVIOR;

D O I：

10.1016/j.proeng.2013.12.071

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

High frequency mechanical impact (HFMI) is a post-weld treatment method for improving fatigue strength of welded joints. Much of the experimental research on fatigue performance of HFMI treated welded joints has concentrated on the beneficial compressive residual stresses created by the treatment and the fatigue strength of these joints under constant amplitude loading and relatively low mean stresses. Critical experimental data has been developed in a nearly completed European RFCS project. New mean stress and variable amplitude fatigue data are presented and evaluated with respect to a proposed International Institute of Welding (IIW) design guideline concerning HFMI treated welded joints. (C) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：161 / 170

页数：10

共 21 条

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