Parametric study on the variability of opening load determination

被引：12

作者：

Kujawski, D ^{[1
]}

Stoychev, S ^{[1
]}

机构：

[1] Western Michigan Univ, Coll Engn & Appl Sci, Dept Mech & Aeronaut Engn, Kalamazoo, MI 49008 USA

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2003年 / 25卷 / 9-11期

关键词：

compliance; opening load; crack closure; partial crack closure;

D O I：

10.1016/S0142-1123(03)00149-X

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, the scatter in the opening load, Pop, values due to the numerical analysis of the experimental load-displacement data is studied. The most commonly used approaches are investigated, namely the ASTM standard, modified two tangent lines and the parabola and line methods. In these methods, the relevant parameters are varied independently within the recommended intervals in order to assess the scatter in the crack opening load. Comparisons among different methods of analyses are discussed together with the implications on fatigue crack growth correlations. Also, a new line-parabola-line procedure for Pop determination is discussed and evaluated. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1181 / 1187

页数：7

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