A fatigue crack growth prediction model for cracked specimen under variable amplitude loading

被引：9

作者：

Wang, Wung Jae ^{[1
]}

Yim, Man-Sung ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Nucl & Quantum Engn, Daejeon 34131, South Korea

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 168卷

基金：

新加坡国家研究基金会;

关键词：

Fatigue crack growth; Non-linear fracture mechanics; Elastic-plastic; Variable loading; Finite element analysis;

D O I：

10.1016/j.ijfatigue.2022.107387

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The objective of this study was to propose a crack growth prediction model for cracked specimens under large and variable amplitude loading conditions. In this study, the concept of change in net-section strain energy was applied to simulate elastic-plastic fracture behavior, and three-dimensional fitting of the results with respect to changes in the net-section strain energy, load ratio, and crack growth rate was performed to create the crack growth prediction model. The validity of the generated model was examined using comparisons with experimental data as well as simulation results from existing crack growth models under several variable loading conditions.

引用

页数：10

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