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The feasibility of testing small Charpy se (b) specimens with the improved Ritchie Knott rice failure criterion

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Document pages: 12 pages

Abstract: This paper studies whether the improved Ritchie Knott rice (RKR) failure criterion can be used to test the feasibility of small Charpy se (b) specimens with thickness to width ratio. The modified RKR failure criterion considered in this paper is () criterion, which predicts the beginning of cleavage fracture when the median crack opening stress (expressed as) measured at a distance equal to four times the crack tip opening displacement exceeds the critical stress. Samples with values of 25, 10, 3 and 2

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