23.1.1-R15 SURFACE MODIFICATION OF AERONAUTIC COMPOSITE MATERIALS BY ATMOSPHERIC PRESSURE PLASMA (APP) FOR COMPOSITE BONDING

MA.TORRIJOS (FIDAMC), Z.MARTIN, R.AVILA

The surface preparation prior to bonding constitutes one of the biggest industrial challenges for the implementation of structural bonding in large composite structures. APP surface modification offers a very attractive alternative to the conventional surface preparations.

23.1.1-R16 TITANIUM MATRIX COMPOSITES WITH NOVEL NETWORK MICROSTRUCTURE

L.HUANG (HARBIN INSTITUTE OF TECHNOLOGY), L.GENG, Y.HU

Discontinuously reinforced titanium matrix composites with reinforcement network architecture, fabricated by powder metallugy, exhibit a superior combination of strength and ductlity. Moreover, the mechanical properties can be further improved by subsequent heattreatment or deformation.

23.1.2-R15 ANALYSIS OF HYBRID (BOLTED/BONDED) STEEL-TO-COMPOSITE JOINT FOR MARINE APPLICATION

P.YARZA (AIMEN TECHNOLOGY CENTRE), G.RISSO, E.TOMASO

In the present study, the behaviour of hybrid joint was investigated by numerical simulation. A three-dimensional non-linear finite element model was developed to predict load transfer distribution in the joint and to determine the ultimate static load.

23.1.2-R16 PRODUCING METAL MATRIX COMPOSITES WITH NON-AGGLOMERATED NANODIAMOND REINFORCEMENTS BY CONSOLIDATION OF MECHANICALLY ALLOYED GRANULES WITH LIQUID PHASE FORMATION

V.POPOV, M.KHOMUTOV (NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY “MISIS”, MOSCOW, RUSSIA), A.PROSVIRYAKOV

Consolidation of composite granules with high content of non-agglomerated uniformly distributed nanodiamonds is aim of the work. The developed method includes mechanical alloying and liquid stamping. Granules are totally or partially melted to enable elimination of the boundaries between granules.

23.1.3-R15 NANO-SILICA PARTICLE TAILORED COMPOSITE ADHESIVE JOINTS

K.SHANMUGAM (MASDAR INSTITUTE)

23.1.3-R16 STUDY OF THE INFLUENCE OF THE SIC REINFORCEMENT IN THE MODIFICATION EFFECT OF SR IN THE A359/SIC METAL MATRIX COMPOSITE

A.TORREGARAY (UNIVERSITY OF THE BASQUE COUNTRY), AM.BALLESTEROS, P.JIMBERT

Microstructural differences of A359/SiC metal matrix composites have been studied. The variable taken into account has been the presence of industrial additives as grain refiners (Al-5Ti-1B)and modifiers (Sr element).

23.1.4-R15 MODELLING OF DEBOND INITIATION AND GROWTH IN A GROUP OF FIBRES UNDER TRANSVERSE LOADS USING ABAQUS USER SUBROUTINE UMAT

D.CASTILLO (UNIVERSITY OF SEVILLE), L.TAVARA, V.MANTIČ

Debond onset and propagation along fibre-matrix interfaces in a group of fibres under transverse loading is studied by means of a linear elastic–brittle interface model (LEBIM) programmed in the user material subroutine (UMAT) of the FEM code Abaqus.

23.1.4-R16 EXPERIMENTAL INVESTIGATION OF THE IN PLANE AND THROUGH THICKNESS SHEAR DAMAGES ON 3D WOVEN CMC USING MULTI-INSTRUMENTED TORSIONAL TESTS

N.TABLEAU (UTC), K.KHELLIL, Z.ABOURA, P.FEISSEL, F.BOUILLON et al.

This paper deals with inplane and though thickness shear behavior of a 3D woven SiC/SiBC Ceramic Matrix Composite. Thanks to multi-instrumented torsionnal tests, both in plane and through thikness shear modules have been identified. Damage kinetics have been then investigated.

23.1.5-R15 FRACTURE ANALYSIS IN 5HS CARBON COMPOSITES SUBJECTED TO PURE MODES I AND II FATIGUE INDUCED DELAMINATION

M.SHIINO (UNESP), RC.ALDERLIESTEN, MV.DONADON, MY.PITANGA, MO.CIOFFI

The crack path and loading directions on modes I and II were determined by fractographic analysis of fatigue fractured specimens carbon/epoxy composite. Mode I fracture showed more influence on GIc than ΔG=Geff while mode II fracture surface suggested the opposite.

23.1.5-R16 NUMERICAL SIMULATION OF CARBON TRANSFER FROM SIC(C) FILAMENTS TOWARD TITANIUM MATRIX DURING HIGH SPEED LIQUID ROUTE COMPOSITE PROCESSING

E.LACOSTE, C.ARVIEU (UNIVERSIÉ BORDEAUX1)

The influence of processing conditions on carbon transfer from the filament surface to the matrix during liquid route process for coating SiC filaments by Ti alloys was studied through modelling and numerical simulations of the process.

23.1.6-R15 INVESTIGATION OF PROGRESSIVE FAILURE BEHAVIOR OF NOTCHED COMPOSITE PLATES

M.AKBULUT (BOGAZICI UNIVERSITY), FO.SONMEZ

The progressive failure behavior of notched laminates under in-plane loads is modeled to determine the ultimate failure load. The numerical predictions are compared with empirical results obtained on specimens having circular holes.

23.1.6-R16 EFFECT OF BAMBOO CHARCOAL ADDITIVE ON WEAR PROPERTIES OF NANO-CARBON/CARBON COMPOSITES WITH BACTERIAL CELLULOSE

Y.OZAWA (FUKUSHIMA UNIVERSITY), L.UUGANSUREN, K.KARINO, T.KIKUCHI

The fabrication method of Si-C/Carbon/Carbon composites with Bacterial Cellulose (BC) and Bamboo Charcoal Powderadditive and their wear properties are investigated.The carbonized BC microfibrils network and SiC additive from BCP could be contributed for low coefficient of wear properties.

23.1.7-R15 MULTISCALE MODELING OF THE COMPRESSIVE BEHAVIOUR OF CFRP STRUCTURES

E.BARANGER (PSA), O.ALLIX, JM.GUIMARD, C.HA-MINH

The modelling of the compressive behaviour of CFRP is presented starting from the fibre scale up to the laminate scale. A ply homogenized behaviour is defined. The interaction between kinking, transverse cracking and delamination is simulated and compared to experiments.

23.1.7-R16 PLASTIC DEFORMATION FLOW EQUATIONS OF TI2ALN/TIAL COMPOSITES

D.SUN (HARBIN INSTITUTE OF TECHNOLOGY), T.SUN, Q.WANG, DQ.WANG, XL.HAN et al.

23.1.8-R15 PREPARATION OF SULFUR-FREE EXPANDABLE GRAPHITE AND ITS FLAME RETARDANT PROPERTY OF HDPE COMPOSITES

TY.LIU, CL.CHIANG (HUNG-KUANG UNIVERSITY)

The hydrothermal method was used to prepare a novel, sulfur-free EG, which is then added to HDPE to improve the flammability and the dripping property of the composites. LOI reached 30, and UL94 reached the V0. This confirmed fl