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FATIGUE OF A PARTICULATE REINFORCED ALUMINIUM METAL MATRIX COMPOSITE SUBJECTED TO AXIAL, TORSIONAL AND COMBINED AXIAL/TORSIONAL LOADING CONDITIONS
Author(s) -
Lease K. B.,
Stephens R. I.,
Jiang Yan Yao,
Kurath P.
Publication year - 1996
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.1460-2695.1996.tb01038.x
Subject(s) - materials science , composite number , metal matrix composite , aluminium , structural engineering , composite material , fatigue testing , matrix (chemical analysis) , engineering
— The goals in this research were to analytically and experimentally investigate the fatigue behavior of a particulate reinforced metal matrix composite subjected to axial, torsional and combined axial/torsional loadings. A series of fully‐reversed uniaxial, torsional and combined axial/torsional fatigue tests were performed on a 6061/Al 2 O 3 /20p‐T6 metal matrix composite material. This research investigated the ability of the Fatemi‐Kurath and the Smith‐Watson‐Topper (SWT) damage parameters to correlate the experimentally obtained fatigue life data and also to represent the fatigue life using uniaxial strain‐life constants. The Fatemi‐Kurath damage parameter correlated the experimental fatigue data from all loading cases better than the SWT damage parameter. Using uniaxial strain‐life constants, both damage parameters predicted fairly reasonable fatigue life calculations for the intermediate fatigue lives (10 3 to 10 4 cycles to failure), while producing non‐conservative results for the shorter fatigue lives (< 10 3 cycles to failure).