Modelling of fatigue crack growth following overloads


Autoria(s): Voorwald, H. J C; Torres, M. A S; Pinto Júnior, C. C E
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/09/1991

Resumo

In variable-amplitude loading there are interaction effects between the loading history and the crack propagation rate. The most important of these effects is the retardation in the crack propagation, which may raise the life of the cracked structureconsiderably. The main objective of this research is to analyse and quantify the retardation of crack propagation in a thin plate of the high-resistance aluminium alloy 2024-T3, comparing the results obtained from the mathematical models proposed to account for the retardation effect. The specimens were tested under high-low loading sequences, for different crack sizes and overload ratios. A simplified model was developed, based on crack closure theory, that could represent the crack behaviour during retardation very well. © 1991.

Formato

423-427

Identificador

http://dx.doi.org/10.1016/0142-1123(91)90600-4

International Journal of Fatigue, v. 13, n. 5, p. 423-427, 1991.

0142-1123

http://hdl.handle.net/11449/64139

10.1016/0142-1123(91)90600-4

2-s2.0-0026226244

Idioma(s)

eng

Relação

International Journal of Fatigue

Direitos

closedAccess

Palavras-Chave #crack growth #retardation
Tipo

info:eu-repo/semantics/article