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Life prediction based on weight‐averaged maximum shear strain range plane under multiaxial variable amplitude loading
Author(s) -
Tao Z.Q.,
Shang D.G.,
Liu H.,
Chen H.
Publication year - 2016
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/ffe.12417
Subject(s) - amplitude , structural engineering , materials science , plane (geometry) , shear (geology) , range (aeronautics) , variable (mathematics) , cycle count , mathematics , mathematical analysis , physics , engineering , composite material , geometry , optics , operations research
Based on Wang and Brown's reversal counting method, a new approach to the determination of the critical plane is proposed by the defined plane with a weight‐averaged maximum shear strain range under multiaxial variable amplitude loading. According to the determined critical plane, a detailed procedure of multiaxial fatigue life prediction is introduced to predict lives in the low‐cycle multiaxial fatigue regime. The proposed approach is verified by two multiaxial fatigue damage models and Miner's linear cumulative damage law. The results showed that the proposed approach can effectively predict the orientation of the failure plane under multiaxial variable amplitude loading and give a satisfactory life prediction.