Abstract
Stress concentration in an elastic body may be caused mainly by the two-mechanisms i.e., concentrated forces acting to a body and geometrical discontinuities of a body such as holes or abrupt change of its surface geometry. The local stress increase induced by stress concentration sometimes causes the initiation of a fatigue crack in a structure, which must be carefully examined for engineering design. We shall first discuss the stress concentration by a concentrated applied force. Then, stress concentrations due to a circular hole and an elliptic hole are calculated by using the Airy’s stress function. The general solution in a polar coordinate system derived in the previous chapter and the complex potential method discussed in Appendix A will be utilized to obtain the solutions, where the latter is essential for the analysis of elliptic hole problem, which is closely related to a crack problem to be explained in the next chapter.
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References
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Sumi, Y. (2014). Stress Concentration Problems. In: Mathematical and Computational Analyses of Cracking Formation. Mathematics for Industry, vol 2. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54935-2_2
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DOI: https://doi.org/10.1007/978-4-431-54935-2_2
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