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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Ward, Carwyn
University of the West of England
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (39/39 displayed)
- 2024Taking a Tailored Approach to Material Design: A Mechanistic Study of the Selective Localization of Phase-Separated Graphene Microdomains
- 2024Design and evaluation of a novel variable-length stepped scarf repair technique using a cohesive damage modelcitations
- 2023Exploiting the use of deep learning techniques to identify phase separation in self-assembled microstructures with localized graphene domains in epoxy blendscitations
- 2023Experimental and hydrodynamic methods to determine aqueous dispersion of discontinuous reclaimed carbon fibres
- 2022Self-assembled microstructures with localized graphene domains in an epoxy blend and their related propertiescitations
- 2021A Smart Interface for Automated Fibre Placement
- 2021A Smart Interface For Machine Learning Based Data-Driven Automated Fibre Placement
- 2021Developing a high-fidelity knowledge base for improvements in the nondestructive testing of advanced composite material productscitations
- 2020Thermoformability characterisation of Flax reinforced polypropylene composite materialscitations
- 2019Understanding of Leading-Edge Protection Performance Using Nano-Silicates for Modificationcitations
- 2018Application of an arm-based FDM system for sandwich panel fabrication
- 2018Experimental and numerical investigation of full scale impact test on fibre-reinforced plastic sandwich structure for automotive crashworthiness
- 2018The Processing of a Novel Polymer Matrix for Wind Turbine Blades
- 2017Modern advances in bismaleimide resin technology:A 21st century perspective on the chemistry of addition polyimidescitations
- 2017The manufacture of honeycomb cores using Fused Deposition Modelingcitations
- 2017Improvement of the in-plane crushing response of CFRP sandwich panels by through-thickness reinforcementscitations
- 2017Improving the Performance of Tufted Composite Sandwich Structures
- 2017Modern advances in bismaleimide resin technologycitations
- 2017The Dibbercitations
- 2017The Dibber:Designing a standardised handheld tool for lay-up taskscitations
- 2017Initial Studies in the Characterisation of a Polymer Matrix for use in Composite Wind Turbine Blades
- 2017Developing a cost comparison technique for hand lay-up versus automated fibre placement and infusion versus out-of-autoclave
- 2017The Dibber: Designing a standardised handheld tool for lay-up taskscitations
- 2016Reclaiming in-process composite waste for use in energy absorbing sandwich structures
- 2016Automated layup of sheet prepregs on complex moulds
- 2016Hand lay-up of complex geometries-prediction, capture and feedback
- 2016Visualising process induced variations in the manufacture of tufted sandwich panels
- 2016Effects of automated patch placement on the mechanical performance of reformed NCF carbon fibre
- 2016Rate Dependance of Forming UD Prepreg Laminates
- 2015Studying effects of preshearing on hand layupcitations
- 2015Studying effects of preshearing on hand layupcitations
- 2015Towards the development of an instrumented test bed for tufting visualisation
- 2014A study of the pressure distribution in the hand layup and vacuum bagging processes
- 2014Preshearing
- 2013A status of acceptance criteria and process requirements in advanced composites manufacturing, and whether they are fit for purposecitations
- 2013NOVEL FLEXIBLE TOOLING TO ENHANCE LIQUID RESIN INFUSION MANUF-ACTURE FOR NET-SHAPED PREFORMS
- 2013On prepreg properties and manufacturability
- 2011Development of the manufacture of complex composite panels
- 2011Exploring the manual forming of complex geometry composite panels for productivity and quality gains in relation to automated forming capabilitiescitations
Places of action
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document
Rate Dependance of Forming UD Prepreg Laminates
Abstract
The potential for reducing wrinkling during forming of a preconsolidated composite laminate by slowing the forming rate was investigated. A new manufacturing method was proposed for constructing a large aerospace component which upon initial trials suffered from severe wrinkling. This paper discusses the mechanisms behind wrinkle formation during the process, and cites the lack of interply slip as a key factor. A range of regulations and constrains meant that the only method by which the process could be modified was to dramatically reduce the forming rate, with the hope of utilizing the viscoelastic properties of epoxy resin and reduce the generated stresses in the resin to allow the prepreg to form wrinkle free. Bias extension and lap shear tests are used to study the materials behavior at a range of strain rates showing a significant reduction in the required forces. The effect of rate change was then investigated by forming circular laminates over a hemispherical shape. Cross-plied two ply blanks showed significant improvements in forming at slower forming rates, while full quasi-isotropic blanks continued to wrinkle even with vastly reduced forming rates.