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Poisson's ratio and the deflection of a viscoelastic plate
Author(s) -
McCammond D.,
Turner S.
Publication year - 1973
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760130304
Subject(s) - poisson's ratio , deflection (physics) , materials science , poisson distribution , viscoelasticity , modulus , composite material , elastic modulus , structural engineering , mathematical analysis , mathematics , classical mechanics , physics , statistics , engineering
Abstract A new method for the measurement of the Poisson's Ratio function of the more rigid plastics is described. The deflection of a freely‐supported circular plate under uniformly distributed load is combined with modulus data obtained in an independent experiment. The apparatus is described, the validity of the relevant elastic stress‐strain formulae are discussed and the results obtained on PMMA and PVC are compared with other published values. It is concluded that this method is at least as accurate as the alternatives, all of which have particular deficiencies, and that it is possibly superior in some respects.