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SELECTIVE PLY-LEVEL HYBRIDISATION FOR IMPROVED NOTCHED RESPONSE

Albertino Arteiro (DEMeUniversidade do Porto) Carolina Furtado (DEMeUniversidade do Porto) Giuseppe Catalanotti (INEGI) José Xavier (Universidade de Trás-os-Montes e Alto Douro) Pedro Camanho (University of Porto)

 

Selective ply-level hybridisation, where thin off-axis plies are combined with thicker 0° plies, results in an unnotched response equivalent to the thin-ply laminate, but enhances the notched response as compared to thin- and blocked-ply laminates.

 

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STUDY ON THE STRENGTH OF THIN-PLY LAMINATES OF CFRP UNDER INTERLAMINAR SHEAR LOADINGS

Huang Chunfang (NUDT) Jiang Dazhi (National University of Defense Technology) Mingchang He (National University of Defense Technology) Jiayo Xiao (National University of Defense Technology) Qing Zheng (National University of Defense Technology) Su Ju (National University of Defense Technology)

 

In this paper, interlaminar shear strength of a carbon fiber/epoxy thin-ply laminates under short-beam bending loads was investigated. Loading-deflection curves of the laminate specimens were obtained.

 

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TESTING AND MODELLING OF TENSION AFTER IMPACT OF A THIN PLY TEXTILE COMPOSITE

Robin Olsson (Swerea SICOMP) Fredrik Ahlqvist (Swerea SICOMP) Alann Andre (Swerea SICOMP) Peter Hellström (Swerea SICOMP) Elena Álvarez (Oxeon) Emilio González (AMADE, Universidad de Girona) Jose Ramon Sainz de Aja (Aernnova Engineering Solutions Ibérica S.A.) Federico Martin De La Escalera (Aernnova Engineering Solutions Ibérica S.A.)

 

Experiments and FE-simulation of impact response, damage and tensile strength after impact of quasi-isotropic laminates from thin ply CFRP weaves. Fibre fracture, matrix cracks and delaminations were studied by deplying, microscopy and C-scan.

 

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TOWARD AEROSPACE GRADE THIN-PLY COMPOSITES

Robin Amacher (Lab. of Applied Mechanics and Reliability Analysis, EPFL) Joel Cugnoni (Ecole Polytechnique Fédérale de Lausanne) Jens Brunner (Institute of Polymer Engineering, FHNW) Erich Kramer (Institute of Polymer Engineering, FHNW) Clemens Dransfeld (University of Applied Sciences and Arts Northwestern Switzerland) Wayne Smith (North Thin Ply Technology) Kenneth Scobbie (Huntsman Advanced Material) L. Sorensen (RUAG Aerostructures) John Botsis (Ecole Polytechnique Fédérale de Lausanne)

 

A new aerospace grade thin-ply composite is developed. It has outstanding CAI performance and a strong size-effect. Two hybrid versions enable to tune it with much improved translaminar toughness and even a pseudo-ductile behaviour where needed.

 

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ANALYSIS OF CRACK PROPAGATION DURING FATIGUE TESTS IN INJECTION MOULDED NOTCHED SPECIMENS MADE OF SHORT GLASS FIBRE REINFORCED POLYAMIDE

Andrea Bernasconi (Politecnico di Milano) Edoardo Conrado (Politecnico di Milano) Peter Hine (University of Leeds)

 

The influence of notch severity, fiber content and orientation on fatigue crack nucleation and propagation phases in injection moulded, v-notched specimens made of SGFRP has been analysed on the base of experimental observations.

 

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ASSESSING A COMPLETE CAD SOLUTION FOR THE DESIGN AND USE OF SHORT FIBRE COMPOSITES BY MEANS OF A COMBINATION OF MOLDFLOW AND ABAQUS

Peter Hine (University of Leeds) Bushra Parveen (University of Leeds) Fin Caton-Rose (University of Bradford)

 

This paper assesses the current state of the art in the design and use of short fibre composites, by comparing the deflection of a real part with that predicted by the combination of a mould filling simulation and a finite element method.

 

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CREEP BEHAVIOUR OF SHORT FIBER REINFORCED COMPOSITES: EFFECTS OF FIBER ORIENTATION AND FIBER MATRIX ADHESION

Bernhard Moeginger (Hochschule Bonn-Rhein-Sieg ) B. Hausnerova (Tomas Bata University in Zlin)

 

Creep of short fiber reinforced PP conventionally and push pull processed was measured and modeled using the EVC to predict creep compliance from matrix creep taking into account orientiation and length of fibers as well as fiber matrix adhesion.

 

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FATIGUE MECHANISMS IN SHORT GLASS FIBRE REINFORCED THERMOPLASTIC: IN SITU X-RAY MICROTOMOGRAPHY OBSERVATIONS AND MICROSTRUCTURE MODELLING

Héloïse Rolland (I2M - Arts et Métiers ParisTech) Nicolas Saintier (I2M - Arts et Métiers ParisTech) Charles Mareau (LAMPA - Arts et Métiers ParisTech) Gilles Robert (Solvay Engineering Plastics)

 

X-ray microtomography has been used in situ to observe the fatigue mechanisms in the SGFR Polyamide 6,6. The stress field induced by the microstructure has been evaluated with numerical computation.

 

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FATIGUE STRENGTH OF STAMPABLE SHORT CARBON FIBER REINFORCED THERMOPLASTIC COMPOSITE

Masamichi Kawai (University of Tsukuba) Shogo Funaki (University of Tsukuba) Ichiro Taketa (Toray) Noriyuki Hirano (Toray)

 

The fatigue behavior and its temperature dependence of stampable short carbon fiber reinforced polyamide composite are examined. Applicability of the anisomorphic constant fatigue life diagram approach is also evaluated.

 

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HIGH STRENGTH JOINING OF SHORT FIBRE REINFORCED POLYMERS AND METALS WITHOUT THE USE OF ADHESIVES IN COMPLEX JUNCTIONS

Kim Kose (inpro Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie mbH) Fred Eggers (Daimler AG) Birgit Faisst (TRUMPF Laser- und Systemtechnik GmbH) Leo Hoffmann (Neue Materialien Fürth GmbH)

 

joining of polymers to metals with a joining technique based on a finely-structured metal surface using only one-sided contact. Results are are similar to conventionally joined hybrids and stays nearly unchanged after thermal and corrosive pre-loads.

 

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