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Dynamic Force Deflection Curves of Cellular Plastics Versus Impact Head Shapes
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English
Abstract
Since 1987 Woodbridge has been engaged in the manufacture of recoverable energy management polyurethane foams. After the development and introduction of our first product we continued our efforts in this field. As part of that development process we adapted a piece of seat testing equipment to small scale impact testing for use in guiding our research activities. As we have worked with different customers, we've found ourselves using different impact head shapes. Clearly the number of geometrical forms and shapes that could be used for testing foamed plastics is infinite. For these reasons we decided to do this study in order to bench mark where we are with respect to impact head shape and the force deflection curves associated with each.