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Multimaterial airframes based on 3D joints between AM metals and carbon-fiber composites

PROJECTS
Funding
European
European Union
Duration
-
Geo-spatial type
Other
Total project cost
€5 475 469
EU Contribution
€5 475 469
Project Acronym
MIMOSA
STRIA Roadmaps
Vehicle design and manufacturing (VDM)
Transport mode
Airborne icon
Transport policies
Environmental/Emissions aspects
Transport sectors
Passenger transport,
Freight transport

Overview

Call for proposal
HORIZON-CL4-2022-RESILIENCE-01
Link to CORDIS
Background & Policy context

Innovative 3D multi-material joints for aircraft

Rivets offer incredible fastening capabilities for both light- and heavy-duty applications. They have been popular in aircraft construction for many years, used to join aluminium sheets. However, riveted joints require regular inspection and maintenance, while the joint surfaces need to be painted after the aircraft assembly. Furthermore, in composite aircraft, rivet holes could compromise the integrity of fibres. The EU-funded MIMOSA project aims to develop 3D multi-material components based on metals and carbon-fibre composites. The proposed materials could achieve greater performance at a fraction of the cost. A vertical stabiliser structure will be fabricated to assess the new joint manufacturing technology.

Objectives

The aim of MIMOSA Project is the development of joined multi-material structures with new concepts able to exploit the digital and hybrid processes in order to achieve higher technological and economic performances with respect to current traditional joints. Furthermore, MIMOSA will lead to the application of circularity of materials and production by integrating the recycling, starting from the ideation phase of product and business. These ambitions and associated needs will be achieved with innovative technology and competitive process for multi-material joints between AlSi10Mg alloy for additive manufacturing (AM) and composites (CFRP, carbon fiber-reinforced polymers). The project proposes new joint concept design, after-service materials regeneration (50% of metals and 90% of CFRP), weight (-51%) and lead time (-65%) reduction and overall process environmental footprint reduction. A prototype of vertical stabilizer (VS) structure will be fabricated and analyzed as the business case of the Project. At the end of the Project, TRL6 is expected by starting at TRL3. Many aerostructures are composed of CFRP skin and metal parts coupled by rivets. However this kind of joint shows some drawbacks: (1) long time for assembling, (2) loss of fibers integrity due to rivet holes, (3) rivets payload, (4) joint surfaces treatment with paints needed, (5) rivets failure issues, (6) hard inspection and maintenance of rivets. MIMOSA Project will go beyond the state of the art in building aircraft structures by providing: (1) scientific research-driven integration of different design fields and fabrication processes, (2) new AM-CFRP multi-material joint concept, (3) reduced waste of materials thanks to recycling and associated economic value generation, (4) enhancement of process performances of energy consumption, lead-time and cost, (5) fabrication of a vertical stabilizer prototype (OB4) for narrow body airliners with the new AM-CFRP joint as business case.

Funding

Parent Programmes
Institution Type
Public institution
Institution Name
European Commission
Specific funding programme
HORIZON.2.4 - Digital, Industry and Space
Other Programme
HORIZON-CL4-2022-RESILIENCE-01-12 Functional multi-material components and structures (RIA)

Partners

Lead Organisation
Organisation
POLITECNICO DI TORINO
Address
CORSO DUCA DEGLI ABRUZZI 24, 10129 TORINO, Italy
Organisation website
EU Contribution
€1 121 348
Partner Organisations
Organisation
Joanneum Research Forschungsgesellschaft Mbh
Address
LEONHARDSTRASSE 59, 8010 GRAZ, Austria
Organisation website
EU Contribution
€811 776
Organisation
F3NICE AS
Address
SJOKRIGSSKOLEVEIEN 15, 5165 LAKSEVAG, Norway
EU Contribution
€895 250
Organisation
GBP METAL GROUP SL
Address
PASEO PLA DE LA MEZQUITA 14, 46800 XATIVA, Spain
EU Contribution
€533 875
Organisation
Leonardo - Societa Per Azioni
Address
Piazza Monte Grappa 4, 195 Roma, Italy
EU Contribution
€605 750
Organisation
VEPLAS VELENJSKA PLASTIKA DD
Address
CESTA SIMONA BLATNIKA 11, 3320 VELENJE, Slovenia
EU Contribution
€805 270
Organisation
TUV ITALIA SRL
Address
FULVIO TESTI 280/6, 20126 MILANO, Italy
Organisation website
EU Contribution
€702 201

Technologies

Technology Theme
Manufacturing processes
Technology
Advanced joining technologies
Development phase
Research/Invention

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