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NUMERICAL INVESTIGATION OF INTERFERENCE FIT ASSEMBLIES AND THE INFLUENCE OF VARYING THE LAMINATE THICKNESS
Philipp Fahr (Technical University of Munich) Roland Hinterhölzl (Technical University of Munich / Institute for Carbon Composites)
Numerical results of interference fit assemblies are compared with experimental and analytical. Reasons for better accordance of numerical results are discussed. Influence of laminate’s thickness on contact pressure investigated in a numerical study.
METAL REINFORCEMENT AROUND FASTENER HOLES IN COMPOSITES
Sahar Akbarpour (KTH Royal Institute of Technology) Stefan Hallström (KTH Royal Institute of Technology)
A local reinforcement concept is introduced where metal inserts are implemented in the form of stacked patches around fastener holes in composites. The specimens with optimized inserts show 50-60% improved bearing strength in pin-loaded tests.
ADHESIVE PROPERTY MODIFICATION THROUGH ADDITION OF MWCNTS FOR DISSIMILAR MATERIAL JOINT APPLICATIONS
Maria Konstantakopoulou (Newcastle University) George Kotsikos (Newcastle University)
The influence on the bond strength of co-cured CFRP/Steel and GFRP/Aluminium single lap joints with three overlap lengths (25mm, 40mm and 60mm) through the addition of MWCNTs into the the epoxy adhesive used has been investigated.
DESIGN TOOL FOR HYBRID BONDED/BOLTED COMPOSITE JOINTS
Valentin Romanov (McGill University) Kobye Bodjona (McGill University) Larry Lessard (McGill University)
An industry-relevant engineering tool is developed for the strength modeling and initial design of hybrid bolted/bonded joints. Fully parametric, this tool is intended to be put into the direct industrial use.
QUASI-STATIC STRENGTH OF HYBRID BONDED-BOLTED SINGLE-LAP JOINTS
Kobye Bodjona (McGill University) Larry Lessard (McGill University)
In this work the quasi-static strength of bonded and hybrid bonded-bolted single-lap joints with different types of adhesive is investigated experimentally.
SHEAR-OUT FAILURE BEHAVIOUR OF SURFACE STRUCTURED METALLIC Z-REINFORCEMENTS FOR CFRP LAMINATES AND JOINTS
Michael Juergens (Airbus Group Innovations) Manuel Tiago von Hafe Pérez Ferreira da Silva (Airbus Group) Elisabeth Ladstätter (Technical University of Munich / Institute for Carbon Composites)
A novel reinforcement technology for CFRP/CFRP adhesively bonded joints is presented as a substitute for riveting and bolting. Shear out failure behaviour is discussed and a bridging law is established for further investigations on a component level.
A BIPHASIC MODEL TO PREDICT THE COMPRESSION STRENGTH OF MISALIGNED THERMOPLASTIC COMPOSITE
Damien Guillon (CETIM) Dao Co (CETIM) Cyril Priem (GeM Nantes) Martin Antoine (GeM Nantes) Patrick Rozycki (Institut de Recherche en Génie Civil et Mécanique)
Compression strength obtained from a numerical biphasic model for thermoplastic and misaligned fibers are compared to experimental data. Choice of materials parameters are deeply discussed. The model provides interesting results if calibrated.
AN EXPERIMENTAL STUDY ON THE INFLUENCE OF FLOW CHANNEL INDUCED FIBER UNDULATION.
Christoph Kracke (BMW AG) Bernhard Staudt (BMW AG) Simon Bickerton (University of Auckland) Peter Mitschang (Institute for Composite Materials)
This study deals with the potential of flow channels in RTM tools for faster impregnation. It is investigated how such flow channels influence the mechanical performance of the part.
CHARACTERISATION OF DEFECTS – DURABILITY RELATIONSHIPS FOR COMPLEX GEOMETRY PREPREG LAMINATES
Mark Battley (University of Auckland) Simon Bickerton (University of Auckland) Alexandre Mordasini (University of Auckland) Abhiram Ramesh (University of Auckland) Nathan Connell (University of Auckland) Logan Dunning Beck (University of Auckland)
The characteristics and formation of defects and imperfections during manufacturing of corner sections in thick carbon-fibre epoxy prepreg laminates is studied and their effect on damage initiation and durability investigated.
EFFECT OF THE COVER FACTOR OF 2D BIAXIAL AND TRIAXIAL BRAIDED CARBON COMPOSITES ON THEIR IN-PLANE LAMINATE PROPERTIES
Frieder Heieck (University of Stuttgart) Peter Middendorf (University of Stuttgart)
The effect of the cover factor on the in-plane mechanical properties of biaxial and triaxial braided carbon fiber composites is investigated. A method of optically measuring the cover factor is presented.
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