CertBond // COST Action CA18120 // Reliable roadmap for certification of bonded primary structures
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Scientific Programme

The main aim of this Action is to enable the implementation of composite bonded joints in primary structures (critical-load-bearing structures).

The main aim of this Action is to enable the implementation of composite bonded joints in primary structures (critical-load-bearing structures). In order to achieve this, the Action will tackle the challenges related with the five stages of the life-cycle of a bonded structure:

1. ADHESIVE SYNTHESIZATION AND INTERFACE BONDING

Develop new eco-friendly adhesives and surface treatments that fulfil the REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) European regulations.

2. DESIGN

i) Develop fail-safe design for bonded structures in aircraft by making use of damage arresting capabilities; ii) Develop damage tolerance methodology for bonded structures; iii) Define analytical and/or numerical methods for typical application scenarios of bonded joints – including the set of material properties and related test standards required for the analysis.

3. MANUFACTURING

i) Define the key manufacturing parameters for ensuring the production quality of the bond strength on a large scale; develop online monitoring methods for control and recording of the manufacturing parameters; ii) Assess the bond quality by non-destructive inspection; define suitable methods for different defect scenarios; iii) Develop upscaling scenarios for automated bonding and relevant design adaptations to enable an automated bonding process.

4. IN-SERVICE LIFE

i) Diagnosis and prognosis of the structural integrity of bonded structures under Environmental and Operational Conditions; ii) Define guidelines towards bonded repairs application.

5. DISASSEMBLY

Development of techniques that can efficiently disassemble bonded parts for repair and re-use purpose.