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Prediction of the nonlinear poisson function using large volumetric strains estimated from a finite hyperelastic material law
Author(s) -
Kakavas P. A.
Publication year - 2000
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.11261
Subject(s) - hyperelastic material , materials science , constitutive equation , poisson's ratio , nonlinear system , ogden , finite strain theory , compressibility , tension (geology) , composite material , mechanics , poisson distribution , structural engineering , finite element method , mathematics , compression (physics) , physics , engineering , statistics , quantum mechanics
The aim of this study is to evaluate the transverse strain of hyperelastic solids as a function of its longitudinal using a special constitutive equation for compressible hyperelastic materials. In addition, the nonlinear dependence of the Poisson ratio on longitudinal strain was derived. Experimental data from EPDM elastomers subjected to uniaxial tension were used in order to determine the material parameters, which are incorporated in the constitutive law.