Abstract
AbstractSoft, deformable padding materials are widely used for the fabrication of cushions and pads used to reduce contact loading stresses in several industrial and biomedical applications. This paper, presents an indentation technique that can be used to evaluate cushioning materials. The technique uses a soft‐headed indenter made of poly(vinyl chloride) gel that is impressed upon the polymer cushion to be tested. The strain fields and the high stress regimes that develop in the head are then mapped using a grid technique and finite strain theory. Results of indentation tests carried out on a number of cushions of varying stiffness are presented and analyzed.
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