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A proposed method of measuring the complex modulus of a thick viscoelastic layer
Authors:J M Golden  G A C Graham
Institution:(1) Environmental Research Unit and Dublin Institute for Advanced Studies, Dublin, Ireland;(2) Dept. of Mathematics, Simon Fraser University, V5A 156 Burnaby, B.C., Canada
Abstract:A simple, non-destructive method of measuring the complex modulus of a layer of viscoelastic material is proposed. The method relies upon an analysis of the frictionless contact of a rigid smooth indentor and the layer. The contact is maintained by means of a fluctuating normal load. The total load (or the indentation) is required to vary in a simple sinusoidal way. The complex modulus may then be determined from the results of observations made when the contact area is maximum (or minimum).
Keywords:Complex modulus  viscoelastic layer  contact problem
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