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Net shape and property tailoring of interming yarns textile preforms reinforced with thermoplastic matrices

Objective


Three different components have been developed: a coach body lateral flap, a motorcycle frame substructure and an interior aircraft catering panel. A sandwich structure has been used for the aircraft panel combinig PPS, PEI and carbon fibers; a PP and glass laminate has been defined for the body coach component and a PP with glass laminate with local reinforcements has been developed for the motorcycle application. Finally, some prototypes of these different components have been produced.
Composites with continuous fibres offer an extreme strenght and stiffness to weight ratio, wich leads to high loaded lightweight structures; Textiles prepegs with unidirectional fibres offer a hight degree of utilisation but are limited in their deformation behaviour to produce complex parts in an efficient way of medium and large series production, without wrinkles, fibre distorsion and voids. Knitted fabrics offer partial solutions of these problems (high deformation and drapability, no wrinkles) but do not reach the expected results, because of their delicate handling, poor mechanical properties, high void content and, mainly, the difficulty for obtained net shape preforms. Fabrics with intermingled or comingled yarns, because of the flexibility of the process, offer unlimited solutions for net shape preforming, with local reinforcements. It can be foreseen that the low production price of these structures will reduce production costs of structural parts by a high percentage. The nearly unlimited drapability, combined with fast processing cycles and thermoplastic matrices will open the applications field of automotive industry for composites and also for secondary structures in aeronautic industry by drastic price reduction and net shape processing. These new textile technology, combined with low-cost thermoplastic processes like thermoforming open new opportunities for thermoplastic composites in medium scale range of production. The proposal addresses research areas 1.1, 1.2, 2.2, 3A.3 and 3B.3 of the Brite/Euram programme. The five SMEs involved in the consortium have great difficulties to afford an own large R&D programme. Therefore, this project complies with the scope of the Craft programme.

Funding Scheme

CRS - Cooperative research contracts

Coordinator

Plasnor SA
Address
S/n,barrio Motxorro S/n
20230 Legazpi
Spain

Participants (7)

ASGLAWO GMBH MATERIALS FOR INSULATION AND REINFORCEMENT
Germany
Address
2,Gewerbegebeit-lindenstrasse 2
09582 Freiberg (Sachs)
Etudes Mécaniques et Notices Industrielles Sa
France
Address
Av Du 19 Mars 1962
33320 Eysines
Fundación INASMET Asociación de Investigación Metalúrgica del País Vasco
Spain
Address
12,Camino De Portuetxe 12
20009 San Sebastián
Les Tissages du Saison
France
Address

64130 Mauleon-soule
NOGE Sl
Spain
Address
Calle Hostalric- Sant Hilari Km19
17401 Arbucies
Nacional Motor SA
Spain
Address
19,Barcelona 19
8102 Martorelles
TECNOTESSILE - SOCIETA NAZIONALE DI RICERCA TENOLOGICA R.L.
Italy
Address
Via Del Gelso 13
59100 Prato