As the repair of primary composite aircraft structures using composite materials has become a matter of 'world wide interest and activity', the requirement of certification methodes and engineering standarts for composite repaires have become evident. Bonded joints for principal load transfer within the structure have to run through an extensive certification/qualification procedure during development phase and are subject to rigerous quality control during the original component manufacturing. However, within typical 'On-Aircraft' repair scenarios bonding procedures and manufacturing conditions are in almost every technical aspect different from original processes and require therefore more extensive verification. Methods to certify repair design, repair procedures, repair methodology and quality control depend on specific repair levels (i.e. SRM, Engineering Disposition, ABDR) and ar not standardised. The paper describes DASA's current approach to certify bonded repairs for damages which require 'Engineering Disposition' for 'On-Aircraft' application.
Quality assurance and certification procedures for bonded joints in on-aircraft scenarios
Qualitätssicherung und Richtlinien für Klebverbindungen im Flugzeugbau
1997
10 Seiten, 14 Bilder, 3 Quellen
Conference paper
English
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