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FP5

BONDSHIP Résumé de rapport

Project ID: G3RD-CT-2000-00101
Financé au titre de: FP5-GROWTH
Pays: Norway

Project guidelines adhesive bonding

The guidelines sum up the collective know-how and experience of the BONDSHIP project partners. It is the first time that such comprehensive guidelines for adhesive bonding have been produced for marine application. The guidelines apply to all types of adhesively bonded joints in Ships.

The guideline document is split into two parts:
- Code (DNV Report No. 2004-0134): The objective of this document is to provide general requirements to ensure the reliability and safety of load-carrying bonded joints in ships.

- Recommended Practices (DNV Report No. 2004-0193): The objective of this document is to provide guidance and examples on how to design, produce and inspect an adhesively bonded joint. Furthermore it shall provide the basis for meeting the general requirements laid out in the Code document.

BONDSHIP GUIDELINES - RECOMMENDED PRACTICES:
This presents methods and actual examples (including data where possible) for the design, production and in-service phase of an adhesively bonded joint. The following topics are discussed:
- Specification of bonded joints;
- Materials selection;
- Failure criteria and characteristic strength values;
- Design and analysis of bonded joints;
- Testing of materials and structures;
- Fire safety;
- Production and repair of bonded joints;
- Non-destructive inspection.

Furthermore, procedures which are not easily found in the literature are presented in an appendix. The intention of this report is to enable naval architects and other suitably qualified engineers to design and produce safe and reliable adhesively bonded joints.

BONDSHIP Guidelines CODE:
This document provides general requirements to ensure the reliability and safety of load-carrying bonded joints in ships. This document applies to all types of adhesively bonded joints in ships. A novel approach for joint approval has been developed based on the following observations: Numerical analysis cannot reliably predict joint failure without additional large scale tests. While numerical analysis can give extremely useful insights into the behaviour of bonded joints, the approval of joint will only utilise representative tests as a cost-effective means of assessing bonded joints. Furthermore, the long-term performance of a bonded joint cannot be reliably predicted from the results of accelerated ageing tests without having relevant in-service experience to verify it. Therefore, requirements to the resistance of the joint are combined with requirements that limit the consequences of failure of the joint and that it must be possible to repair the joint using an approved repair method.

Contact

Jan R. WEITZENBÖCK, (Research Programme Director)
Tél.: +47-67579758
Fax: +47-67577520
E-mail