Inter-ply stitching optimisation of highly drapeable multi-ply preforms
An efficient finite element model has been developed in Abaqus/Explicit to solve highly non-linear fabric forming problems, using a non-orthogonal constitutive relation and membrane elements to model bi-axial fabrics. 1D cable-spring elements have been defined to model localised inter-ply stitch-bon...
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| Format: | Article |
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Elsevier
2015
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| Online Access: | https://eprints.nottingham.ac.uk/44623/ |
| _version_ | 1848796959759925248 |
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| author | Chen, S. Endruweit, Andreas Harper, L.T. Warrior, N.A. |
| author_facet | Chen, S. Endruweit, Andreas Harper, L.T. Warrior, N.A. |
| author_sort | Chen, S. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | An efficient finite element model has been developed in Abaqus/Explicit to solve highly non-linear fabric forming problems, using a non-orthogonal constitutive relation and membrane elements to model bi-axial fabrics. 1D cable-spring elements have been defined to model localised inter-ply stitch-bonds, introduced to facilitate automated handling of multi-ply preforms. Forming simulation results indicate that stitch placement cannot be optimised intuitively to avoid forming defects. A genetic algorithm has been developed to optimise the stitch pattern, minimising shear deformation in multi-ply stitched preforms. The quality of the shear angle distribution has been assessed using a maximum value criterion (MAXVC) and a Weibull distribution quantile criterion (WBLQC). Both criteria are suitable for local stitch optimisation, producing acceptable solutions towards the global optimum. The convergence rate is higher for MAXVC, while WBLQC is more effective for finding a solution closer to the global optimum. The derived solutions show that optimised patterns of through-thickness stitches can improve the formability of multi-ply preforms compared with an unstitched reference case, as strain re-distribution homogenises the shear angles in each ply. |
| first_indexed | 2025-11-14T19:56:16Z |
| format | Article |
| id | nottingham-44623 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:56:16Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-446232020-05-04T17:05:38Z https://eprints.nottingham.ac.uk/44623/ Inter-ply stitching optimisation of highly drapeable multi-ply preforms Chen, S. Endruweit, Andreas Harper, L.T. Warrior, N.A. An efficient finite element model has been developed in Abaqus/Explicit to solve highly non-linear fabric forming problems, using a non-orthogonal constitutive relation and membrane elements to model bi-axial fabrics. 1D cable-spring elements have been defined to model localised inter-ply stitch-bonds, introduced to facilitate automated handling of multi-ply preforms. Forming simulation results indicate that stitch placement cannot be optimised intuitively to avoid forming defects. A genetic algorithm has been developed to optimise the stitch pattern, minimising shear deformation in multi-ply stitched preforms. The quality of the shear angle distribution has been assessed using a maximum value criterion (MAXVC) and a Weibull distribution quantile criterion (WBLQC). Both criteria are suitable for local stitch optimisation, producing acceptable solutions towards the global optimum. The convergence rate is higher for MAXVC, while WBLQC is more effective for finding a solution closer to the global optimum. The derived solutions show that optimised patterns of through-thickness stitches can improve the formability of multi-ply preforms compared with an unstitched reference case, as strain re-distribution homogenises the shear angles in each ply. Elsevier 2015-04-30 Article PeerReviewed Chen, S., Endruweit, Andreas, Harper, L.T. and Warrior, N.A. (2015) Inter-ply stitching optimisation of highly drapeable multi-ply preforms. Composites Part A: Applied Science and Manufacturing, 71 . pp. 144-156. ISSN 1359-835X Fabrics/textiles Forming Preform Stitching http://www.sciencedirect.com/science/article/pii/S1359835X15000275 doi:10.1016/j.compositesa.2015.01.016 doi:10.1016/j.compositesa.2015.01.016 |
| spellingShingle | Fabrics/textiles Forming Preform Stitching Chen, S. Endruweit, Andreas Harper, L.T. Warrior, N.A. Inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| title | Inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| title_full | Inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| title_fullStr | Inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| title_full_unstemmed | Inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| title_short | Inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| title_sort | inter-ply stitching optimisation of highly drapeable multi-ply preforms |
| topic | Fabrics/textiles Forming Preform Stitching |
| url | https://eprints.nottingham.ac.uk/44623/ https://eprints.nottingham.ac.uk/44623/ https://eprints.nottingham.ac.uk/44623/ |