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Strain measurement with particular reference to cast iron
Author(s) -
ROBINSON L.
Publication year - 1971
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1971.tb01860.x
Subject(s) - strain gauge , strain (injury) , cast iron , structural engineering , brittleness , diagram , stress–strain curve , stress (linguistics) , materials science , metallurgy , engineering , forensic engineering , mathematics , finite element method , statistics , medicine , linguistics , philosophy
The general planning procedure for development testing at the author's firm is outlined. Strains in static tests of cast iron components under loads simulating service conditions are surveyed by brittle coatings and measured by strain gauges with incremental and shake‐down load application. The fatigue life is then estimated in a novel manner by reference to the S/N curves established by Deere in push‐pull tests on various cast irons. For nonzero mean strains, reference is also made to the static stress‐strain curves for the tested material and to its Goodman diagram so that an equivalent strain reversal can be deduced and the Deere curve applied. For varying loads Miner's rule is invoked.