The shapes of the pressure distributions over the flat end surfaces of compressed solid-rubber cylinders have been determined. The cylinders were compressed between metal end plates. The pressure distribution for compressive strains of less than 3 per cent is approximately parabolic. It is unaffected by the strains set up in the rubber by the differential thermal contraction of the rubber and bonded-metal end plates. A method of extending these measurements to large compressive strains, and a possible future programme of work, is outlined.
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