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Article Dans Une Revue Shape Memory and Superelasticity Année : 2015

Phase transformation surfaces analysis for SMA around a crack tip with curvature

Résumé

Under loading, for a shape memory alloy, the stress concentration around the crack tip, inside a plate, is a serious fracture problem. The tip shape constitutes an important data. In a recent paper (Lexcellent et al. in Int J Fract 169:1–13, 2011), the determination of phase transformation surfaces around a crack tip without curvature was investigated. For crack with curvature, the approximate stress field solution proposed by Creager and Paris is used (Int J Fract 3:247–252, 1967). The knowledge of phase transformation surfaces dimensions and shapes can help us to define a fracture criterion. The study is focussed on mode I because this opening mode is the most dangerous for the structure. Also, comparisons between experiments and computing can be made. Qualitative agreement was obtained.

Dates et versions

hal-02868324 , version 1 (15-06-2020)

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Citer

Mohamed Rachid Laydi, Christian Lexcellent. Phase transformation surfaces analysis for SMA around a crack tip with curvature. Shape Memory and Superelasticity, 2015, 1 (3), pp.339 - 346. ⟨10.1007/s40830-015-0030-3⟩. ⟨hal-02868324⟩
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