Abstract
SUMMARY For the problem of large elastic compression of a finite rectangular rubber block which has bonded metal plates to its upper and lower surfaces, a new load-deflection relation is derived assuming an isotropic incompressible Mooney material and that the pointwise vanishing of the stress on the free faces can be replaced by the vanishing of the force resultant on these faces. The load-deflection relation so obtained is derived from a fully three-dimensional deformation which is a generalization of a plane-strain deformation given previously for infinitely long rectangular rubber pads. The 'finite' and 'infinite' load-deflection relations are compared with experimental results and with that predicted by the conventional engineering approximation deduced from the so-called 'shape-factor' method.
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