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Model for the conso...
Model for the consolidation of aligned thermoplastic powder impregnated composites
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- Connor, M. (författare)
- Laboratoire de Technologie des Composites et Polyméres, Ecole Polytechnique Federale de Lausanne, CH-JOJ5 Lausanne, Switzerland
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- Toll, Staffan (författare)
- Laboratoire de Technologie des Composites et Polyméres, Ecole Polytechnique Federale de Lausanne, CH-JOJ5 Lausanne, Switzerland
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- Manson, J. -AE. (författare)
- Laboratoire de Technologie des Composites et Polyméres, Ecole Polytechnique Federale de Lausanne, CH-JOJ5 Lausanne, Switzerland
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- Gibson, A. G. (författare)
- Department of Mechanical, Materials and Manfacturing Engineering, Herschel Building, University of Newcastle upon Tyne, NEI 7RU, England
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(creator_code:org_t)
- 2016-08-18
- 1995
- Engelska.
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Ingår i: Journal of Thermoplastic Composite Materials. - : SAGE Publications. - 0892-7057 .- 1530-7980. ; 8:2, s. 138-162
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper describes the role of surface energy effects, externally applied pressure, resin flow and fiber bed elasticity on the consolidation of thermoplastic-matrix composites manufactured by the powder impregnation route. Surface energy effects in the spreading of polymer droplets on fiber surfaces are discussed; then a model for the consolidation process is developed, relating the variables mentioned above. Consolidation experiments on powder-impregnated composites of the FIT type (Fibres Impregnees de Thermoplastique) were carried out using a mold attached to a servo-hydraulic testing machine. The model accurately predicts variations in void content during consolidation of carbon fiber/PEEK (CF/PEEK) and carbon fiber/PEI (CF/PEI) laminates. It was found that, at the pressures needed to achieve rapid consolidation, surface energy has a negligible influence on impregnation rate, but its effects on the void topology can be considerable. It was also shown that, when laminates of low void content are required, a minimum pressure is needed to overcome the effect of fiber bed elasticity.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Nyckelord
- Composite materials
- Consolidation
- Elasticity
- Fibers
- Flow of fluids
- Impregnation
- Interfacial energy
- Laminates
- Mathematical models
- Polymers
- Pressure effects
- Topology
- Fiber bed elasticity
- Fibres impregnees de thermoplastique
- Powder impregnation
- Resin flow
- Servo hydraulic testing machine
- Surface energy effects
- Thermoplastic matrix composites
- Void content
- Thermoplastics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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