Compressive modulus of adhesive bonded rubber block

The present study examined the effect of a thin adhesive layer on the modulus of an elastic rubber block bonded between two plates. The plates were assumed to be rigid, both in extension and flexure, and subjected to vertical compression loading. The Gent’s approach was used to obtain the analytic d...

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Published in:Wārasān Songkhlā Nakharin 2008-03, Vol.30 (2), p.221-225
Main Authors: Wiriya Thongruang, Charoenyut Dechwayukul
Format: Article
Language:English
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analytical modeling
bonded rubber block
finite element analysis
mechanical properties
plates
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container_title Wārasān Songkhlā Nakharin
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creator Wiriya Thongruang
Charoenyut Dechwayukul
description The present study examined the effect of a thin adhesive layer on the modulus of an elastic rubber block bonded between two plates. The plates were assumed to be rigid, both in extension and flexure, and subjected to vertical compression loading. The Gent’s approach was used to obtain the analytic deformations of the rubber and adhesive. The analytic deformations were then validated with the finite element model. There was a good agreement between both methods. The modulus of the bonded rubber block, defined as effective modulus, was then studied. The effective modulus was increased by the factor (1+ (a/2t)2(6Grh/Gat+1)-1), which is composed of the shape factor of the rubber block (a/2t, ratio of the bonded and unbonded areas), and the shear stiffness factor (Grh/Gat, ratio of modulus and thickness of rubber and adhesive). The effective modulus does not depend on either factors, when the shear stiffness of the joint is high or Grh/Gat >10.
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subjects analytical modeling
bonded rubber block
finite element analysis
mechanical properties
plates
title Compressive modulus of adhesive bonded rubber block
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