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A MODEL FOR CALCULATING THE FATIGUE CRACK OPENING LOAD AND ITS APPLICATIONS
Author(s) -
Qingzhi He
Publication year - 1984
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1984.tb00358.x
Subject(s) - structural engineering , residual strength , residual , fatigue testing , materials science , residual stress , crack closure , paris' law , fracture mechanics , engineering , composite material , computer science , algorithm
— A model is proposed for calculating the fatigue crack opening load based on the concept of residual strain in the overload plastic zone. An equation relating the fatigue crack opening load to loading parameters is given. The model is used to evaluate the retardation effect due to overload under various loading conditions. It is found that the calculated results agree with test data.