Dugdale model crack

The results are compared to some existing methods. Dugdale model applied to crack interactions. N2 - It is doubtful that modelling crack interactions problem within the context of elasticity adequately reflects the physical aspects as the failure of brittle material is approached. AB - It is doubtful that modelling crack interactions problem within the context of elasticity adequately reflects the physical aspects as the failure of brittle material is approached.

Civil, Environmental, and Geo- Engineering. Overview Fingerprint. Abstract It is doubtful that modelling crack interactions problem within the context of elasticity adequately reflects the physical aspects as the failure of brittle material is approached.

Publication series Name Proceedings of Engineering Mechanics. A fracture criterion based on the CTOD can therefore also be considered. The effective crack length is computed from Eq. There is therefore an iterative procedure to follow as shown below:. According to the previous analysis, the SSY assumption can be used under some circumstances:. For elasto-plastic materials in plane strain conditions, the plastic zone has a different shape see Picture VII.

Picture VII. SSY of the yielding strip model. Therefore, the classical LEFM solutions can be used. Therefore, the classical LEFM solutions can be used provided the crack size is corrected to obtain an effective crack size which consists of an iterative procedure to follow. Proceedings of the 7th Sagamore Conference IV.

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