Year: 1984
Type: article
Abstract: Characteristics in fatigue crack growth under spectrum loading with p-distribution for an A 508-3 steel were investigated. Based on the results, the influence of the p-distribution, the load sequence and the stress ratio on crack growth rates was discussed. In the case that the stress ratio is about zero, the linear prediction law of crack growth is found to give and excessively conservative estimation of crack growth rates above 5×10-9m/cycle. The modified linear prediction law gives and unconservative estimation of near threshold crack growth rates in the case that p is large. Under positive man load, however, the retardation effect becomes smaller and the linear prediction law can give a good estimation of crack growth rates.
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4245869482