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OPTICAL PROCESS MODEL FOR LASER-ASSISTED TAPE WINDING
Jasper Reichardt (University of Twente) Ismet Baran (University of Twente) Remko Akkerman (University of Twente)
An optical process model for the laser-assisted tape winding process is developed. The proposed optical model is coupled to a thermal model to assess the sensitivity of the nip-point temperature to optical process parameters.
PROCESS INDUCED TRANSVERSE SHEAR STRESSES IN THICK UNIDIRECTIONAL PULTRUDED PROFILES
Ismet Baran (University of Twente) Remko Akkerman (University of Twente)
The residual transverse stresses might be critical for UD composites since their transverse shear strength is relatively low. In this paper, the process induced tranverse shear stresses are predicted for a UD 100x100 mm pultruded square profile.
VALIDATION OF RING FILAMENT WOUND FIBER PATHS FOR UNIDIRECTIONAL PREFORM PLY MANUFACTURING
Felipe Alberto Finkenwerder (Airbus Group Innovations) Matthias Geistbeck (Airbus Group Innovations) Peter Middendorf (University of Stuttgart)
The objective of the present study is to validate geodesic and non-geodesic trajectories at room temperature conditions by unidirectional ring filament winding.
AUDI ULTRA-RTM: A TECHNOLOGY FOR HIGH PERFORMANCE AND COST EFFECTIVE CFRP PARTS FOR HIGH VOLUME PRODUCTION
Günter Deinzer (Audi AG) Martin H. Kothmann (Audi AG) David Roquette (Audi AG) Felix Diebold (Audi AG)
Within the last few years the Audi AG researched and developed the ultra-RTM technology which allows a cost-effective manufacturing for high-performing CFRP structures.
DUAL SCALE FLOW DURING VACUUM INFILTRATION OF FIBER-REINFORCED COMPOSITES: FROM IN SITU SYNCHROTRON EXPERIMENTS TO NUMERICAL SIMULATIONS
Joaquí Vila (IMDEA Materials Institute) Federico Sket (IMDEA Materials Institute) Carlos González (Polytechnic University of Madrid & IMDEA Materials Institute) Javier Llorca (Polytechnic University of Madrid & IMDEA Materials Institute)
This presentation is a contribution to understand the phenomena that control vacuum-assisted resin infusion at the mesoscopic and microscopic scales using X-ray microtomography and vacuum-infusion tests, together with numerical simulations.
HYBRID-MATRIX PROCESSING: HOW TO CO-INJECT MULTIPLE RESIN SYSTEMS INTO ONE COMPOSITE PART?
Jan Krollmann (Technical University of Munich) Carlos Sanchez Alvarado (Technical University of Munich) Patrick Carqueville (Technical University of Munich) Roman Snajdr (Technical University of Munich) Swen Zaremba (Technical University of Munich / Institute for Carbon Composites) Klaus Drechsler (Technical University of Munich / Institute for Carbon Composites)
A method for the co-injection of multiple resin systems in on composite part with defined out-of-plane transition is investigated. Based on local, reversible compactioning of the preform flow fronts can be controlled during the RTM injection process.
INFLUENCE OF TEXTILE ARCHITECTURE BY PROCESSING CARBON FIBER BASED NON-CRIMP FABRICS IN AUTOMOTIVE SERIAL APPLICATION USING HIGH-PRESSURE-RTM
Christian Koch (BMW Group) Andreas Nonn (BMW Group) Franz Maidl (BMW Group) Thomas Maurer (BMW Group) Jochen Toepker (BMW Group) Simon Bickerton (University of Auckland) Elisabeth Ladstätter (Technical University of Munich / Institute for Carbon Composites)
This study demonstrated the correlation of CF-NCF permeability (in lateral and transverse direction) measured at low, laboratory scale pressures, to results observed in preproduction and production level processes (high-pressure RTM).
SLIP AND WRINKLE BEHAVIOR OF MULI-LAYERED FIBER PREFORM IN RESIN TRANSFER MOLDING PROCESS
Dong Gi Seong (Korea Institute of Materials Science) Shin-O Kim (Korea Institute of Materials Science) Moon Kwang Um (Korea Institute of Materials Science)
Structural factors and process conditions of fiber preform affecting the flow induced fiber deformation in resin transfer molding are investigated by measuring the related forces including friction and bulk stiffness of fiber preform.
SURFACE QUALITY CHARACTERISATION OF COMPOSITE COMPONENTS FOR AEROSPACE APPLICATIONS
Peter Schubel (University of Nottingham) Xuesen Zeng (University of Nottingham) Julien Lorrillard (Aircelle Ltd, SAFRAN Group) Harshad Mistry (Aircelle Ltd, SAFRAN Group) Ian Taylor (Aircelle Ltd, SAFRAN Group)
This study focuses on benchmarking Class-A surface finish of composite components processed through vacuum assisted resin transfer moulding (VARTM) for use in the aerospace sector.
RESIN FLOW IN COMPRESSION MOLDING PROCESSES
Paul Bockelmann (Technical University of Munich / Institute for Carbon Composites) Johannes Maierhofer (Technical University of Munich) Jan Krollmann (Technical University of Munich) Swen Zaremba (Technical University of Munich / Institute for Carbon Composites) Klaus Drechsler (Technical University of Munich / Institute for Carbon Composites) Pierre Mertiny (University of Alberta)
Resin flow of two variants of compression molding were visually investigated with fluorescent photography. It was found that process parameters and the type of matrix pre-application strongly determine resin distribution after compression.
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