Blucher Mechanical Engineering Proceedings

Maio 2014, vol.1, num.1 - 10th World Congress on Computational Mechanics
Full Article - Open Access Idioma principal | Segundo principal

A VARIATIONAL MODEL FOR THE WRINKLING OF CARBON FIBRE COMPOSITES DURING CONSOLIDATION

A VARIATIONAL MODEL FOR THE WRINKLING OF CARBON FIBRE COMPOSITES DURING CONSOLIDATION

Dodwell, T. J.; Butler, R.; Hunt., G. W.

Full Article:

A semi-analytical variational model for the formation of wrinkles following consolidation of a carbon fibre composites over an external radius is presented. Understanding how wrinkles form in the manufacturing of carbon fiber composites during the debulk and curing processes is important because, depending on their severity, they may compromise the structural integrity of the final part. A nonlinear elastic model is described, and energy minimization of the resulting potential energy is achieved using a gradient flow approach. The critical conditions for the appearance of wrinkles and the complex post-buckling behaviour are derived and their implications to the manufacturing processes are discussed.

A semi-analytical variational model for the formation of wrinkles following consolidation of a carbon fibre composites over an external radius is presented. Understanding how wrinkles form in the manufacturing of carbon fiber composites during the debulk and curing processes is important because, depending on their severity, they may compromise the structural integrity of the final part. A nonlinear elastic model is described, and energy minimization of the resulting potential energy is achieved using a gradient flow approach. The critical conditions for the appearance of wrinkles and the complex post-buckling behaviour are derived and their implications to the manufacturing processes are discussed.

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DOI: 10.5151/meceng-wccm2012-18162

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Como citar:

Dodwell, T. J.; Butler, R.; Hunt., G. W.; "A VARIATIONAL MODEL FOR THE WRINKLING OF CARBON FIBRE COMPOSITES DURING CONSOLIDATION", p-886-898. In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 23580828, DOI 10.5151/meceng-wccm2012-18162

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