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Development and Optimization of THz NDT on Aeronautics Composite Multi-layered Structure

Objective

Modern aircraft structures have to comply with severe requirements: they have to be light as well as safe. These requirements lead to an increased use of composite materials in the aircraft industry. However, new materials also require new techniques in order to inspect aircraft components during production in a non-destructive way.
The primary goal of the DOTNAC project is to develop a safe, contact-free, high resolution, and potentially on-site NDT tool based on terahertz (THz) waves, which will be easy to integrate in industrial facilities, and allowing the detection of surface, subsurface and in-depth defects in a variety of composite materials used in aeronautics. The developed NDT tool will fill in the performance gaps that are still present amongst the established NDT techniques and will therefore be an extremely useful tool in NDT in terms of sensor fusion.
The THz spectrum covers a frequency spectrum from the far-IR region to the mid-IR region (centre frequency between 100 GHz and 10 THz). Over the past several years, there has been a significant interest in the potential of THz detection for imaging. There are two major factors contributing to this interest: (1) Terahertz radiation is readily transmitted through most non-metallic and non-polarized media, thus enabling THz systems to ‘see-through’ materials, (2) THz radiation is non-ionizing and poses no health risk to the system’s operator. Nowadays very little research is being performed using THz radiation for air transport NDT, and little is known on how typical composite material defects such as delamination, porosities and inclusions can be detected by THz waves.
Because of the rapidly increasing use of composites, especially in critical parts, nearly any industry (civilian and military) that fabricates and/or maintains composite structures can benefit both in terms of cost savings and part integrity.
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Coordinator

ECOLE ROYALE MILITAIRE - KONINKLIJKE MILITAIRE SCHOOL

Address

Avenue De La Renaissance 30
1000 Bruxelles

Belgium

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 418 069,37

Administrative Contact

Johan Van Opstal (Mr.)

Participants (9)

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VERHAERT NEW PRODUCTS & SERVICES NV

Belgium

EU Contribution

€ 528 113,50

INNOV SUPPORT

Belgium

EU Contribution

€ 177 000

TECHNISCHE UNIVERSITAET KAISERSLAUTERN

Germany

EU Contribution

€ 422 400

FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Germany

EU Contribution

€ 495 841,63

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

France

EU Contribution

€ 507 169

FUNDACION CENTRO DE TECNOLOGIAS AERONAUTICAS

Spain

EU Contribution

€ 177 935

LGAI TECHNOLOGICAL CENTER SA

Spain

EU Contribution

€ 174 808

CENTRE INTERNACIONAL DE METODES NUMERICS EN ENGINYERIA

Spain

EU Contribution

€ 227 196,50

ISRAEL AEROSPACE INDUSTRIES LTD.

Israel

EU Contribution

€ 174 250

Project information

Grant agreement ID: 266320

Status

Closed project

  • Start date

    1 September 2010

  • End date

    31 August 2013

Funded under:

FP7-TRANSPORT

  • Overall budget:

    € 4 505 167,12

  • EU contribution

    € 3 302 783

Coordinated by:

ECOLE ROYALE MILITAIRE - KONINKLIJKE MILITAIRE SCHOOL

Belgium