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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Prediction of the longitudinal crack behaviour of stiffened curved panels
The purpose of this study is to present a simplified semi-analytical methodology to predict the behaviour of longitudinal cracks in cracked stiffened curved panels with frames. Pressure loading acting on the longitudinal cracks induces geometrical non-linearity due to large deflections of crack edges. This methodology is based mainly on the application of 'bulging' coefficients to stress intensity factors taken from a numerical model of a stiffened cracked flat panel in order to get the crack driving force of the curved panel. This flat model must be geometrically similar to the curved panel. The advantage of the method is the reduced calculation time compared with a numerical model of the cracked stiffened curved panel, including frames. Analysis of the results shows a highly satisfactory correlation between prediction by calculation and experimental data.
Prediction of the longitudinal crack behaviour of stiffened curved panels
The purpose of this study is to present a simplified semi-analytical methodology to predict the behaviour of longitudinal cracks in cracked stiffened curved panels with frames. Pressure loading acting on the longitudinal cracks induces geometrical non-linearity due to large deflections of crack edges. This methodology is based mainly on the application of 'bulging' coefficients to stress intensity factors taken from a numerical model of a stiffened cracked flat panel in order to get the crack driving force of the curved panel. This flat model must be geometrically similar to the curved panel. The advantage of the method is the reduced calculation time compared with a numerical model of the cracked stiffened curved panel, including frames. Analysis of the results shows a highly satisfactory correlation between prediction by calculation and experimental data.
Prediction of the longitudinal crack behaviour of stiffened curved panels
Saves St. Germes, C. (Autor:in) / Davy, A. (Autor:in) / Barrau, J.J. (Autor:in)
International Journal of Fatigue ; 23 ; 147-158
2001
12 Seiten, 6 Quellen
Aufsatz (Zeitschrift)
Englisch
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