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A rapid multi-scale design tool for the prediction of wrinkle defect formation in composite components

Research output: Contribution to journalArticle

Original languageEnglish
Article number108388
Number of pages13
JournalMaterials and Design
Early online date27 Nov 2019
DateAccepted/In press - 25 Nov 2019
DateE-pub ahead of print - 27 Nov 2019
DatePublished (current) - 1 Feb 2020


The consolidation of uncured material is an important factor in the design and manufacture of thick laminated composite structures since it is a key driver for part quality and the formation of defects. A new modelling approach and its implementation is presented here. The constitutive relation, based on kinematic enrichment, has been derived from the orientation and volume of the micro-constituents of the material, their respective constitutive laws and the orientation of the interfaces between them. It is applicable for any layered structures, in particular those made of soft anisotropic materials. The proposed method has been implemented into a commercial Finite Element (FE) software via a user material. Its ability to predict wrinkles during the manufacture of laminated composites demonstrates its performance as a design tool, as this provides a challenging test case for any numerical platform.

    Structured keywords

  • Bristol Composites Institute ACCIS

    Research areas

  • kinematic enrichment, hyper-viscoelasticity, anisotropy, heterogeneity, interface

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    Licence: CC BY


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