Fatigue behavior and life predictions of notched specimens made of QT and forged microalloyed steels

被引：59

作者：

Fatemi, A ^{[1
]}

Zeng, Z

Plaseied, A

机构：

[1] Univ Toledo, Dept Mech Ind & Mfg Engn, Toledo, OH 43606 USA

[2] Nanjing Univ Technol, Dept Mech Engn, Nanjing, Peoples R China

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2004年 / 26卷 / 06期

关键词：

notched fatigue life; stress concentration effects; notch constraint; microalloyed steel; stress-life; strain-life;

D O I：

10.1016/j.ijfatigue.2003.10.005

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Fatigue behavior of notched specimens was investigated using circumferentially notched round bar and double-notched fiat plate geometries, each with different stress concentration factors. Specimens were made of a commonly used vanadium-based microalloyed forging steel, in both the as-forged and quenched and tempered (QT) conditions. The effects of different notch severities and constraint conditions (i.e. plane stress versus plane strain) on fatigue behavior, and the ability of S-N and strain-life approaches to correlate and predict the experimental data Lire examined. Notched fatigue behavior of the microalloyed steel is evaluated and compared with its QT counterpart. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：663 / 672

页数：10

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