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Wrinkle development analysis in thin sail-like structures using MITC shell finite elements

Trimarchi, Daniele, Vidrascu, M, Taunton, D.J., Turnock, S.R. and Chapelle, D. (2013) Wrinkle development analysis in thin sail-like structures using MITC shell finite elements Finite Elements in Analysis and Design, 64, pp. 48-64. (doi:10.1016/j.finel.2012.09.005).

Record type: Article

Abstract

We propose a method of modelling sail type structures which captures the wrinkling behaviour of such structures. The method is validated through experimental and analytical test cases, particularly in terms of wrinkling prediction. An enhanced wrinkling index is proposed as a valuable measure characterizing the global wrinkling development on the deformed structure. The method is based on a pseudo-dynamic finite element procedure involving non-linear MITC shell elements. The major advantage compared to membrane models generally used for this type of analysis is that no ad hoc wrinkling model is required to control the stability of the structure. We demonstrate our approach to analyse the behaviour of various structures with spherical and cylindrical shapes, characteristic of downwind sails over a rather wide range of shape and constitutive parameters. In all cases convergence is reached and the overall flying shape is most adequately represented, which shows that our approach is a most valuable alternative to standard techniques to provide deeper insight into the physical behaviour. Limitations appear only in some very special instances in which local wrinkling-related instabilities are extremely high and would require specific additional treatments, out of the scope of the present study

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More information

e-pub ahead of print date: 23 October 2012
Published date: February 2013
Keywords: sail modelling, mitc shells, wrinkling, wrinkling index
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 344187
URI: http://eprints.soton.ac.uk/id/eprint/344187
ISSN: 0168-874X
PURE UUID: 63548247-b34c-4cbb-a118-0c4bc45bc72d
ORCID for D.J. Taunton: ORCID iD orcid.org/0000-0002-6865-089X
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 24 Oct 2012 13:52
Last modified: 18 Jul 2017 05:20

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Contributors

Author: Daniele Trimarchi
Author: M Vidrascu
Author: D.J. Taunton ORCID iD
Author: S.R. Turnock ORCID iD
Author: D. Chapelle

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