Open AccessFatigue Life Estimates for Helicopter Loading Spectra
Author(s) -
A KHOSROVANEH,
Norman E. Dowling,
A. P. Berens,
John P. Gallagher
Publication year - 1990
Publication title -
journal of the american helicopter society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.442
H-Index - 54
eISSN - 2161-6027
pISSN - 0002-8711
DOI - 10.4050/jahs.35.59
Subject(s) - aeronautics , spectral line , environmental science , aerospace engineering , computer science , engineering , physics , astronomy
Helicopter loading histories applied to notch metal samples are used as examples, and their fatigue lives are calculated by using a simplified version of the local strain approach. This simplified method has the advantage that it requires knowing the loading history in only the reduced form of ranges and means and number of cycles from the rain-flow cycle counting method. The calculated lives compare favorably with test data.
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