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A hybrid model for modelling arbitrary cracks in isotropic plate structures

Luo, Yulin, Featherston, Carol A. ORCID: and Kennedy, David ORCID: 2023. A hybrid model for modelling arbitrary cracks in isotropic plate structures. Thin-Walled Structures 183 , 110345. 10.1016/j.tws.2022.110345

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Damage modelling is essential in preliminary structural design and non-destructive damage detection. This paper investigates changes in natural frequencies of plates due to an arbitrarily aligned crack. A novel hybrid method couples an exact strip model for the intact part with a finite element model for the cracked part. The crack is modelled as a rotational spring with additional rotational freedoms being added to the finite element nodes. The method is validated against published results for through-the-depth cracks. Cracks with varying direction, location, depth and length are used to study the effects of changing the crack parameters

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 1879-3223
Date of First Compliant Deposit: 7 November 2022
Date of Acceptance: 3 November 2022
Last Modified: 06 Jan 2024 18:31

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