Abstract
A closed-form solution for the stress field in an infinite plate which contains a slant crack was presented in this paper. The exact solution derived is valid all-over the stress field and its accuracy is independent of the normalized to the crack-length distance from the crack tips. Therefore, the solution yields with the same accuracy the sum and the difference of principal stresses, which can he compared with whole-field experimental solutions. A comparison of the exact solution with two-term approximations, given by Eftis and Subramonian[11], which constitute the most accurate solutions of the problem up-to-now, indicated that significant errors exist in the approximate solutions varying with distance from the crack tip and type of quantity studied.
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