Enabling Qualification of Hybrid Structures for Lightweight and Safe Maritime Transport | 2 Mers Seas Zeeën

QUALIFY

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Enabling Qualification of Hybrid Structures for Lightweight and Safe Maritime Transport

Priority Axis

Technological and Social Innovation

Specific objective

Technological Innovation

Lead partner

Stichting Materials Innovation Institute (M2i)

Date de début

14/08/2017

Date de fin

31/12/2021

Project budget

3 777 816

ERDF amount

2 266 689

ERDF rate

60%

    À propos

    Common challenge

    The drivers to reduce weight in traditionally heavy loaded structures such as ships demands the development of durable, lightweight solutions that can withstand such loads under extreme conditions. The combination of steels and composites in adhesively bonded structures can reduce weight while preserving strength, leading to lighter and stronger ships. 10% weight reduction triggers a reduction of up to 7% in fuel consumption. The potential savings, along to the manufacturing advantages, have motivated the shipbuilding industry to explore the use of adhesively bonded hybrid joints in primary structures, capable to withstand high loads and guaranteeing safety. Currently, no certification guidelines exist to orient the industry when certifying new designs using such hybrid assemblies, which limits their to secondary structures. QUALIFY will provide the necessary knowledge to remove these technological and regulatory barriers, enabling their use in primary structures in shipbuilding. 

    Main Achievements

    The primary goal of Qualify is to provide guidance and examples validated through testing for certification of adhesively bonded composite-metal hybrid primary structures for maritime applications. The project is a cross-border collaborative effort between knowledge institutions (5), end-users (3), and classification societies (2). To enable the qualification of adhesively bonded joints, the whole system must be qualified.

    Ghent University (Belgium) leads the work on the long term structural performance of the adhesively bonded hybrid joints under representative operational and environmental conditions. Experiments and simulations at material, coupon, and full scale tests levels under fatigue and static loads in aged and unaged conditions are almost completed. The remaining activities are full scale level tests, simulations and validations against the experimental results. The lack of an inspection and monitoring protocol to orient the end-users on the inspection techniques that can reliably assess the structural health of the joint is being addressed in Qualify.

    Delft University of Technology (The Netherlands) leads the development of a reliable inspection and maintenance methodology for adhesively bonded hybrid joints. A number of eight techniques were employed at the aforementioned scale levels and the obtained data was correlated with the integrity status of the joints. The monitoring and inspection protocol will be soon finalized in collaboration with classification societies and end-users. In the absence of maritime classification societies there would be no guideline standards for vessels.

    Bureau Veritas (France) and Lloyd's Register (United Kingdom) lead the development of the guidelines for the qualification of hybrid adhesive joints. A draft of the roadmap for the qualification of hybrid joints is being written. It comprises the following sections: introduction to adhesive joints, design map, design assessment, constituents characterization, durability, manufacturing, and inspection and monitoring. To date, the focus has been on establishing and maintaining a live risk register to capture progress and outstanding hurdles to certification.

    Partnership

    Partners

    Technische Universiteit Delft

    Cambridge University

    DAMEN SCHELDE NAVAL SHIPBUILDING

    Bureau Veritas Marine & Offshore SAS

    Universiteit Gent

    Com&Sens

    Parkwind

    Lloyd's Register EMEA

    Stichting Kenniscentrum Windturbine Materialen en Constructies

    BAE Systems Naval Ships

    Sirris

    Outputs

    Theme
    Type
    Target
    URL / Download
    31/07/2020

    Tailored equipment to evaluate the performance of the hybrid joint under combined loading and environmental conditions.

    Thème: Innovation - Ports and logistics
    Type: Physical equipment/pilot
    Target: Ports - SMEs /enterprises - Universities and research centres
    31/10/2020

    Accelerated tests type 2 = Testing of corrosion assisted fatigue to evaluate components in a representative environment and at different scales.

    Thème: Innovation - Ports and logistics
    Type: Physical equipment/pilot
    Target: Ports - SMEs /enterprises - Universities and research centres
    31/10/2020

    Tests to assess the sensitivity to the environment of the adhesive material properties and structural performance of the joint - at different scales.

    Thème: Innovation - Ports and logistics
    Type: Physical equipment/pilot
    Target: Ports - SMEs /enterprises - Universities and research centres
    31/03/2020

    Accelerated tests type 1 = Rapid determination of basic fatigue properties for design purposes - at different scales.

    Thème: Ports and logistics - Innovation
    Type: Physical equipment/pilot
    Target: Ports - Universities and research centres - SMEs /enterprises
    31/03/2020

    Structural health and condition monitoring tests

    Thème: Ports and logistics - Innovation
    Type: Physical equipment/pilot
    Target: Ports - Universities and research centres - SMEs /enterprises