A hybrid model for modelling arbitrary cracks in isotropic plate structures

Luo, Yulin, Featherston, Carol A. ORCID: https://orcid.org/0000-0001-7548-2882 and Kennedy, David ORCID: https://orcid.org/0000-0002-8837-7296 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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Abstract

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
URI:	https://orca.cardiff.ac.uk/id/eprint/154014

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