Unified two-stage fatigue methodology based on a probabilistic damage model applied to structural details

摘要

Highlights?A unified two-stage fatigue methodology based on probabilistic damage and Huffman models is proposed for structural details.?The Walker-like stress amplitude parameter is used in the probabilistic model proposed by Castillo and Fernández-Canteli.?The Huffman fatigue crack initiation and propagation model based on strain energy density was applied to the materials and structural details under consideration.?Experimental fatigue crack growth test data of Eiffel bridge material and P355NL1 steel are used.?Experimental fatigue data of notched details made of material from Eiffel bridge and P355NL1 steel are used.AbstractFatigue cracks are often a result of incremental stable crack growths that can be described by fracture mechanics. Fatigue crack initiation, however, has been most often described using emp