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Martyn Douglas Wakeman

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Publications associées (27)

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Optimization of hybrid thermoplastic composite structures using surrogate models and genetic algorithms

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman

Using an integrated processing methodology, an injection or compression moulded thermoplastic structure can be locally reinforced, for example, with textile structures or uni-directional fibre tows. Netshape components can be produced with cycle times typi ...

2007

Film stacking impregnation model for a novel net-shape thermoplastic composite preforming process

Jan-Anders Edvin Maansson, Véronique Michaud, Martyn Douglas Wakeman, Simon Jespersen

An impregnation model has been developed to evaluate the infiltration phenomena that occur during a novel near net shape preforming method. This process comprises automated deposition of thermoplastic resin and unidirectional (UD) carbon fibres to a pre-pr ...

2008

Procede non isothermique de fabrication de parties composites creuses

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman

A process for making hollow composite structures or vessels which includes the steps of: A) heating a mixture of thermoplastic matrix and reinforcing fibres wrapped over a rigid or semi-rigid thermoplastic liner or bladder above the melting point of the th ...

2005

Consolidation of net-shape random fiber thermoplastic composite preforms

Jan-Anders Edvin Maansson, Patrick Blanchard, Véronique Michaud, Martyn Douglas Wakeman, Simon Jespersen

A novel thermoplastic composite preforming process has been developed. This thermoplastic programmable powdered preforming process (TP-P4) uses commingled glass and polypropylene yarns, which are chopped to a desired length and deposited onto a vacuum scre ...

2010

Stamp forming of carbon fibre/PA12 composites - a comparison of a reactive impregnation process and a commingled yarn system

Jan-Anders Edvin Maansson, Pierre-Etienne Bourban, Martyn Douglas Wakeman

Two forms of carbon fibre reinforced polyamide 12 (PA12) were compared during non-isothermal stamp forming. The first was a stretch broken commingled yarn woven into a fabric, studied at three initial preconsolidation levels. The second was produced by in ...

2006

Towards Textile-Based Fiber Reinforced Thermoplastic Nanocomposites: Melt Spun Polypropylene-Montmorillonite Nanocomposite Fibers

Jan-Anders Edvin Maansson, John Christopher Plummer, Martyn Douglas Wakeman, Chrystèle Houphouet-Boigny Favre

The present work is aimed at assessing the feasibility of integrating thermoplastic polypropylene nanocomposite matrices into conventional fiber-reinforced composites based on hybrid textiles that incorporate both the matrix and glass-fiber yarns, in order ...

2007

Flow Properties of Tailored Net-Shape Thermoplastic Composite Preforms

Jan-Anders Edvin Maansson, Patrick Blanchard, Véronique Michaud, Martyn Douglas Wakeman, Simon Jespersen

A novel thermoplastic programmable preforming process, TP-P4, has been used to manufacture preforms for non-isothermal compression molding. Commingled glass and polypropylene yarns are deposited by robot onto a vacuum screen, followed by a heat-setting ope ...

Springer Netherlands2009

Finite element modelling and testing of an injection moulded generic tow reinforced structure

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman

The deformation and fracture behaviour of a generic injection moulded structure reinforced by a robotically placed commingled glass fibre/polypropylene UD-tow (uni-directional) was simulated by finite elements. The suitability of modelling hybrid structure ...

2005

Integrating life cycle costs and environmental impacts of composite rail car-bodies for a Korean train

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman, Daniel Emery

A coupled Life Cycle Costing and life cycle assessment has been performed for car-bodies of the Korean Tilting Train eXpress (TTX) project using European and Korean databases, with the objective of assessing environmental and cost performance to aid materi ...

Springer-Verlag2009

Processing of Hybrid Glass-Fibre Reinforced Thermoplastic Nanocomposites

Jan-Anders Edvin Maansson, John Christopher Plummer, Martyn Douglas Wakeman, Chrystèle Houphouet-Boigny Favre

The aim of this work is to integrate polypropylene/montmorillonite (MMT) nanocomposite matrices into conventional fibre-reinforced composites. Two types of composite have been considered: long fibre-reinforced composites from co-woven glass fibre and nanoc ...

2005

Hybrid Glass Mat-reinforced Polypropylene-Montmorillonite Nanocomposites

Jan-Anders Edvin Maansson, Véronique Michaud, John Christopher Plummer, Martyn Douglas Wakeman, Sara Dalle Vacche, Chrystèle Houphouet-Boigny Favre

Polypropylene/montmorillonite (iPP/MMT) has been investigated as an alternative to isotactic polypropylene (iPP) as a matrix for glass mat thermoplastic (GMT) composites. The melt viscosity increased significantly on MMT addition, but iPP/5.9wt% MMT-based ...

2010

Manufacturing cost comparison of thermoplastic and thermoset RTM for an automotive floor pan

Jan-Anders Edvin Maansson, Véronique Michaud, Martyn Douglas Wakeman

Two resin transfer moulding (RTM) processes have been examined for automotive body-in-white (BIW) structures. An epoxy system was compared with a novel reactive polyamide 12 (PA12) system via characterisation of reaction kinetics and the production of carb ...

2006

Hybrid glass fiber-reinforced thermoplastic nanocomposites

Jan-Anders Edvin Maansson, John Christopher Plummer, Martyn Douglas Wakeman, Chrystèle Houphouet-Boigny Favre

The feasibility of integrating thermoplastic isotactic polypropylene/ montmorillonite nanocomposite matrices into conventional fiber-reinforced composites has been investigated. Two basic processing routes were considered: long glass fiber (GF)-reinforced ...

2008

Mechanical damage behaviour of a generic GMT part locally reinforced with unidirectional commingled yarn inserts

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman

2005

Over-Injection Molding of Stamped Themoplastic Composite Textile Inserts -- A Process and Property comparison of PP and PET-Based Materials

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman

2005

Netshape preforming technologies for thermoplastic composites: a study of the interaction of investment, material cost, trim fractions, and part cost

Jan-Anders Edvin Maansson, Martyn Douglas Wakeman, Simon Jespersen

2006

Martyn Douglas Wakeman

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Optimization of hybrid thermoplastic composite structures using surrogate models and genetic algorithms

Film stacking impregnation model for a novel net-shape thermoplastic composite preforming process

Procede non isothermique de fabrication de parties composites creuses

Consolidation of net-shape random fiber thermoplastic composite preforms

Stamp forming of carbon fibre/PA12 composites - a comparison of a reactive impregnation process and a commingled yarn system

Towards Textile-Based Fiber Reinforced Thermoplastic Nanocomposites: Melt Spun Polypropylene-Montmorillonite Nanocomposite Fibers

Flow Properties of Tailored Net-Shape Thermoplastic Composite Preforms

Finite element modelling and testing of an injection moulded generic tow reinforced structure

Integrating life cycle costs and environmental impacts of composite rail car-bodies for a Korean train

Processing of Hybrid Glass-Fibre Reinforced Thermoplastic Nanocomposites

Hybrid Glass Mat-reinforced Polypropylene-Montmorillonite Nanocomposites

Manufacturing cost comparison of thermoplastic and thermoset RTM for an automotive floor pan

Hybrid glass fiber-reinforced thermoplastic nanocomposites

Mechanical damage behaviour of a generic GMT part locally reinforced with unidirectional commingled yarn inserts

Over-Injection Molding of Stamped Themoplastic Composite Textile Inserts -- A Process and Property comparison of PP and PET-Based Materials

Optimisation of Properties and Dimensional Stability of Composites by Controlled Fibre Placement

Technical cost modelling of an automated net-shape preforming process for thermoplastic composites: a case study

Glass Fiber Reinforced Polypropylene Nanocomposites

Void Evolution During the Stamp-Forming of Thermoplastic Composites Sheets

Netshape preforming technologies for thermoplastic composites: a study of the interaction of investment, material cost, trim fractions, and part cost