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ENVIRONMENTAL FATIGUE CRACK PROPAGATION IN METAL/COMPOSITE LAMINATES
Author(s) -
WANHILL R. J. H.
Publication year - 1979
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.1460-2695.1979.tb01090.x
Subject(s) - materials science , epoxy , aluminium , alloy , composite material , aluminium alloy , carbon fibers , composite number , titanium alloy , damage tolerance , metal , metallurgy
— Flight simulation fatigue crack propagation tests with gust spectrum loading were carried out on laminates of (i) aluminium alloy 2024‐T3/carbon epoxy, (ii) aluminium alloy 7475‐T761/carbon‐epoxy and (iii) titanium alloy Ti–6Al–4V/carbon‐epoxy, each with a nominal weight saving of 30% as compared to equivalent 2024‐T3 panels. The performance of the 2024‐T3/carbon‐epoxy laminates was much superior to those of the other material combinations. Overall, there was a fairly strong effect of changing from an environment of normal air to an air plus water spray environment. Probable reasons for this strong effect are discussed.