EXPERIMENTAL ANALYSIS AND MODELLING OF FATIGUE CRACK INITIATION MECHANISMS

被引：1

作者：

Ustrzycka, Aneta ^{[1
]}

Mroz, Zenon ^{[1
]}

Kowalewski, Zbigniew L. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Fundamental Technol Res, Warsaw, Poland

来源：

JOURNAL OF THEORETICAL AND APPLIED MECHANICS | 2017年 / 55卷 / 04期

关键词：

fatigue crack initiation; damage evolution; optical methods; ESPI;

D O I：

10.15632/jtam-pl.55.4.1443

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The present work is devoted to simulation of fatigue crack initiation for cyclic loading within the nominal elastic regime. It is assumed that damage growth occurs due to action of mean stress and its fluctuations induced by crystalline grain inhomogeneity and the free boundary effect. The macrocrack initiation corresponds to a critical value of accumulated damage. The modelling of damage growth is supported by Electronic Speckle Pattern Interferometry (ESPI) apparatus using coherent laser light.

引用

页码：1443 / 1448

页数：6

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