At present, there are no certification guidelines to orient the naval industry when certifying new designs using hybrid assemblies (adhesively bonded, composite to metal connections), which limits their application to secondary structures. In QUALIFY, a multi-scale testing plan will be implemented by a consortium of 11 partners, to provide reliable insights into the long-term performance of hybrid joints operating in demanding marine environments. This will ultimately enable the increased use of adhesively bonded hybrid structures in primary structures in shipbuilding, and will also generate spin-offs to other industries.
QUALIFY will remove the barriers that currently prevent the application of adhesively bonded structures in primary structures, through an innovative combination of tests and techniques.
The project will pursue the following three main objectives:
- Evaluate the long term structural performance of the adhesively bonded hybrid joint under representative operational and environmental conditions;
- Develop a reliable inspection and maintenance methodology for adhesively bonded hybrid joints;
- Develop a procedure (Guidelines) for the qualification of adhesively bonded hybrid joints in primary structures in marine applications.
Parkwind will bring its expertise to extend the works and guidelines to the offshore industry.
The following outputs will be delivered by the project:
- Tests to assess the sensitivity to the environment of the adhesive material properties and the structural performance of the joint – at different scales;
- Tailored equipment to evaluate the performance of the hybrid joint under combined loading and environmental conditions;
- Accelerated tests type 1 = Rapid determination of basic fatigue properties for design purposes – at different scales;
- Accelerated tests type 2 = Testing of corrosion assisted fatigue to evaluate components in a representative environment and at different scales.
- Monitoring and inspection protocol;
- Structural health and condition monitoring tests;
- Guidelines for the qualification of adhesively bonded hybrid structures in primary structures for marine applications.
The consortium is composed of 11 partners, each of them bringing a specific experience to the project. Observers are also involved in the project.
Technische Universiteit DelftCambridge UniversityDAMEN SCHELDE NAVAL SHIPBUILDINGBureau Veritas Marine & Offshore SASUniversiteit GentCom&SensParkwindLloyd’s Register EMEAStichting Kenniscentrum Windturbine Materialen en ConstructiesBAE Systems Naval Ships
MOCS BVOnderzoekscentrum voor de aanwending van staal N.V.Defensie Materieel OrganisatieVereniging Industrieel Oppervlaktebehandelend Nederland (ION)Netherlands Maritime AssociationPolymer Maritime DevelopmentDow Belgium B.V.B.ASE Blades technology B.V.Flanders’ Maritime Cluster
The project will be running until 31/07/2020 and represents a total budget of 3,781,577€, amongst which 2,268,946€ is EU funded.