Abstract
An understanding of the Hertz contact theory is important for investigating the failure strength and behavior of rolling and/or slipping mechanical-structural components. Two simple special cases including a circular contact and line contact patch have been solved in the closed form solution. However, there are many unsolved complicated cases where the contact areas become elliptical contact patches. In this paper, a simple stress field generated in contact bodies under general loading conditions is derived. The stress field derived in this paper is utilized to generate theoretical three dimensional photoelastic isochromatic fringe patterns. Some of the theoretical isochromatic fringe patterns are compared with published experimental results. The agreement between the theoretical and the experimental results are found to be good.
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