2026-06-03T08:20:30Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/294492026-02-03T12:07:18Zcom_10630_2254col_10630_37959

00925njm 22002777a 4500 dc Pedraza, Consolación author Martín-Romero, José Alberto author Rodriguez, Irene author Ortega, Noemí author Lunas, Jesús author 2023-12 The availability of reliable fatigue crack growth (FCG) prediction tools is essential to the design of structures subjected to fatigue loading. Constant amplitude (CA) test provides ∆k vs. da/dN data, but CA test data applicability is limited because of the strong influence of stress ratio (R) and thickness on the FCG. To develop crack growth rate base-curves involving thickness and R, available CA test data from litera-ture have been analysed according to PIFCC fundamentals and considering the transition from plane strain state to plane stress state at the crack tip. This tool is able to estimate ∆k vs. da/dN data under CA loading for thicknesses and stress ratios of which there is no information available, especially for thin components (1 to 5 mm) in which the stress state transitions hinder the estimations. Applied to 2024 and 7075 aluminium alloys it provides an expression of FCG rate along 4 decades. https://hdl.handle.net/10630/29449 Materiales - Fatiga - Congresos Fatigue crack growth rate base-curve involving thickness and stress ratio in 2024-T3 &T351 aluminium alloys.