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Boltless assembling Of Primary Aerospace Composite Structures

Boltless assembling Of Primary Aerospace Composite Structures

Objective

"The main challenge of the BOPACS project is to reduce the weight and costs of primary aerospace structures by developing bolt free adhesive bonded joints that comply with the airworthiness requirements.

Until today thin walled composite primary aerospace structures are joined by using a large number of fasteners. Bolt free joining would considerably contribute to the weight and cost reduction of aerospace structures.

Within BOPACS target applications will be selected that are commonly used in today’s aerospace primary structures and where adhesive bonding might advantageously replace conventional riveting / fastening. Based on these target application bolt free adhesive bonded joining methods will be developed that comply with the EASA airworthiness requirements.


Contrary to projects focusing on the development of non destructive techniques for the inspection of weak bonds, BOPACS proposes arigorous road map to certification by developing Means of Comply based on:

• Thorough research, beyond the state of the art, into the crack growth / disbond extension mechanisms in adhesively bonded joints.
• Design, analysis, testing and assessment of different categories of crack stopping design features, i.e. features that are capable of preventingcracks or disbonds from growing above a predefined acceptable size, with a joint still capable of carrying the limit load.

The project results and certification issues will be reviewed on a regular base by EASA representatives through the Airbus certification department."
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Coordinator

STICHTING NATIONAAL LUCHT- EN RUIMTEVAARTLABORATORIUM

Address

Anthony Fokkerweg 2
1059cm Amsterdam

Netherlands

Activity type

Research Organisations

EU Contribution

€ 657 750

Administrative Contact

J.H. Halm (Mr.)

Participants (13)

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CENTRE DE RECHERCHE EN AERONAUTIQUE ASBL - CENAERO

Belgium

EU Contribution

€ 266 043,75

UNIVERSITE CATHOLIQUE DE LOUVAIN

Belgium

EU Contribution

€ 322 560

SOCIETE ANONYME BELGE DE CONSTRUCTIONS AERONAUTIQUES-S.A.B.C.A.

Belgium

EU Contribution

€ 230 600

VYZKUMNY A ZKUSEBNI LETECKY USTAV A.S.

Czechia

EU Contribution

€ 261 896,50

DEUTSCHES ZENTRUM FUER LUFT - UND RAUMFAHRT EV

Germany

EU Contribution

€ 445 412,50

UNIVERSITAET STUTTGART

Germany

EU Contribution

€ 406 070

AIRBUS DEFENCE AND SPACE GMBH

Germany

EU Contribution

€ 372 919,50

PANEPISTIMIO PATRON

Greece

EU Contribution

€ 289 800

ZURCHER HOCHSCHULE FUR ANGEWANDTE WISSENSCHAFTEN

Switzerland

EU Contribution

€ 367 700

SHORT BROTHERS PLC

United Kingdom

EU Contribution

€ 243 292,50

FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Germany

EU Contribution

€ 338 448,75

AIRBUS OPERATIONS GMBH

Germany

EU Contribution

€ 232 660

FUNDACION PARA LA INVESTIGACION, DESARROLLO Y APLICACION DE MATERIALES COMPUESTOS

Spain

EU Contribution

€ 161 089,50

Project information

Grant agreement ID: 314180

Status

Closed project

  • Start date

    1 September 2012

  • End date

    29 February 2016

Funded under:

FP7-TRANSPORT

  • Overall budget:

    € 6 615 525

  • EU contribution

    € 4 596 243

Coordinated by:

STICHTING NATIONAAL LUCHT- EN RUIMTEVAARTLABORATORIUM

Netherlands