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Evaluation of fatigue life for titanium alloy TC4 under variable amplitude multiaxial loading
Author(s) -
Wu Z.R.,
Hu X.T.,
Li Z. X.,
Song Y.D.
Publication year - 2015
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.12240
Subject(s) - amplitude , titanium alloy , structural engineering , materials science , cycle count , variable (mathematics) , fatigue testing , alloy , composite material , engineering , mathematics , optics , physics , mathematical analysis , operations management
Fatigue tests under variable amplitude multiaxial loading were conducted on titanium alloy TC4 tubular specimens. A method to estimate the fatigue life under variable amplitude multiaxial loading has been proposed. Multiaxial fatigue parameter based on Wu–Hu–Song approach and rainflow cycle counting and Miner–Palmgren rule were applied in this method. The capability of fatigue life prediction for the proposed method was checked against the test data of TC4 alloy under variable amplitude multiaxial loading. The prediction results are all within a factor of two scatter band of the test results.