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In this paper, the author presents the effect of specimen thickness on the stress concentration factor of a plate that has been weakened by a circular hole. The results compare very well with existing results on thin and very thick plates and bridge the data gap between them. Furthermore, the solution is shown to be derived from the same general solution from which the three-dimensional crack problem solution can be derived. The author also, by analogy, draws some conclusions regarding the behavior of the stress intensity factor.
thickness effect, stress concentration factor, circular hole, three-dimensional analysis, fracture, fracture mechanics
Professor, University of Utah, Salt Lake City, UT