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TOWARDS PRACTICAL NON‐DESTRUCTIVE FATIGUE DAMAGE INDICATORS
Author(s) -
WEISS V.,
OSHIDA Y.,
WU A.
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.tb00390.x
Subject(s) - residual stress , materials science , diffraction , ultrasonic sensor , stress (linguistics) , absorption (acoustics) , composite material , structural engineering , optics , acoustics , engineering , linguistics , philosophy , physics
— The applicability of measurements of residual stress, X‐ray diffraction line broadening, ultrasonic absorption, and phase changes, for the purpose of fatigue damage detection was explored on SAE 1008 plain carbon steel and type 304 and type 316 stainless steels. The most promising indicators of progressive damage appear to be residual stress and phase change measurements. While diffraction line broadening is not very useful as an indicator of progressive damage, it can serve as an indicator of the stress or strain range to which a critical part has been subjected, and may therefore prove useful for monitoring and diagnostic purposes. From the limited data on ultrasonic absorption measurements little can be said about their applicability to fatigue damage assessment.