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A TORSION‐BENDING LOADING FRAME FOR A UNIAXIAL FATIGUE TEST MACHINE
Author(s) -
Yates J. R.,
Miller K. J.
Publication year - 1988
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.1460-2695.1988.tb01386.x
Subject(s) - structural engineering , torsion (gastropod) , materials science , bending , composite material , engineering , medicine , surgery
— A novel mixed‐mode loading frame has been designed to fit a uniaxial servo‐hydraulic test machine. The frame allows fatigue tests to be performed on circurnferentially slit round bars under combined in‐phase torsion and bending loads at positive mean stresses. The growth of fatigue cracks was monitored using a direct current potential drop technique. An empirical equation relating crack depth and voltage is presented.