Investigation on the effect of geometric and structural notch on the fatigue notch factor in steel welded joints

被引：10

作者：

Lagoda, Tadeusz ^{[1
]}

Bilous, Pawel ^{[2
]}

Blacha, Lukasz ^{[1
]}

机构：

[1] Opole Univ Technol, Dept Mech & Machine Design, Ul Mikolajczyka 5, PL-45271 Opole, Poland

[2] Ferrpol Sp Zoo, Ul Poznanska 3, PL-63900 Sierakowo, Poland

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2017年 / 101卷

关键词：

Welded joint; Structural notch; Complex notch; MULTIAXIAL FATIGUE; LIFE ESTIMATION; STRESS; STRENGTH; FAILURE; STRAINS; BRIDGE; CURVE;

D O I：

10.1016/j.ijfatigue.2016.09.006

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The paper presents an analysis of complex fatigue notch in welded joints, defined through the effect of both geometric notch and structural notch. The undertaken analysis involved fatigue tests conducted using S355N steel test pieces without a notch and with geometric, structural and complex notch. The test results were used to compare fatigue lives of notchless elements with fatigue lives of elements with each notch type. As an effect of numerous analysis fatigue notch factor was proposed, defined as a power function of number of load cycles and formulated for butt joints under different loadings. The results were compared with results obtained according to the Xiao-Yamada concept of theoretical notch factor. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：224 / 231

页数：8

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