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Modeling for the fatigue process of bridge structures



Title: Modeling for the fatigue process of bridge structures
Author(s): K. M. Mahmoud
Paper category : conference
Book title: International Symposium on Intergrated Life-Cycle Design of Materials and Structures
Editor(s): A. Sarja
Print-ISBN: 951-758-408-3
e-ISBN: 235158029X
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 473 - 478
Total Pages: 6
Nb references: 8
Language: English


Abstract: This paper presents a damage model for interaction between a macroscopic crack and the microscopic damage ahead of its tips. A damage variable that represents the fraction of original cross-sectional area occupied by voids is introduced to account for microvoid accumulation in the vicinity of the crack-tip. A bridge component loaded in Mode 1, with a remote cyclic stress, is studied. The effects of initial crack size, final crack size and cyclic
stress level on the bridge senlice life are assessed and found to be in good agreement with Paris power-law for fatigue crack growth.


Online publication: 2000-04-30
Classification: DURABlLlTY DESIGN AND PREDICTION MODELS FOR LIFE-CYCLE PERFORMANCE
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/235158029X.087