Aircraft Joints and Corrosion Control

  • Ung Hing Tiong
  • Graham Clark
Conference paper

Abstract

Corrosion damage in aircraft structure, if undetected and/or left untreated, can undermine safety. Currently corrosion prevention and management in many civil and military fleets still relies strongly on the use of traditional ‘find and fix’ maintenance practices, although this has been refined by the increasing use of Corrosion Prevention and Control Plans (CPCP) which provide a framework for targeted inspections and treatment to help with corrosion management. Teardowns of high-life service aircraft and parts can also be valuable tools to help identify corrosion-prone areas and relative severity of the corrosion. This paper describes research which supports the development of improved prognostic capability for corrosion, by investigating one particular factor which appears to play a significant role in the development of corrosion. The focus of this research is to better understand and predict the deterioration and breakdown of protective paint coatings at aircraft joints, primarily due to the influence of mechanical displacement. The impact of in-service mechanical loading on coating degradation has so far received little attention, despite clear evidence that coating tend to fail first at specific site such as sheet ends and fastener heads. Potential service/performance implications of the joint displacement on the protection of ageing aircraft are discussed. More importantly, it is argued that appropriate corrective actions are required immediately after the paint cracking detected, even if active corrosion is not fully evident.

Keywords

Ultra Violet Corrosion Damage Paint Film Paint Coating Paint Surface 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Airlines, A.: Flight 243, Boeing 737-200, N73711, near Maui Hawaii, April 28, National Transport Safety Board, Washington, D.C (1988)Google Scholar
  2. 2.
    Furuta, S., Terada, H., Sashikuma, H.: Fatigue strength of fuselage joint structures under ambient and corrosive environment. In: ICAF 1997: Fatigue in New and Aging Aircraft, EMAS, pp. 231–249 (1997)Google Scholar
  3. 3.
    Clark, G.: Corrosion and the management of Structural Integrity. In: Rudd, J.L. (ed.) ICAF 1999 Structural Integrity for the Next Millennium. EMAS, Warley (1999)Google Scholar
  4. 4.
    Cole, G.K., Clark, G., Sharp, P.K.: The implications of corrosion with respect to structural integrity, DSTO-RR-0102, Defence Science and Technology Organisation, Melbourne (1997)Google Scholar
  5. 5.
    Kinzie, R., Cooke, G.: Corrosion in USAF aging aircraft fleets. In: RTO AVT Workshop on Fatigue in the Presence of Corrosion, Corfu, Greece (1998)Google Scholar
  6. 6.
    Skaja, A., Fernando, D., Croll, S.: Mechanical property changes and degradation during accelerated weathering of polyester-urethane coatings. Journal of Coatings Technology and Research 3, 41–51 (2006)CrossRefGoogle Scholar
  7. 7.
    Tangestanian, P., Papini, M., Spelt, J.K.: Starch media blast cleaning of artificially aged paint filrms. Wear 248, 128–139 (2001)CrossRefGoogle Scholar
  8. 8.
    Yang, X.F., Tallman, D.E., Bierwagen, G.P., Croll, S.G., Rohlik, S.: Blistering and degradation of polyurethane coatings under different accelerated weathering test. Polymer Degradation and Stability 77, 103–109 (2002)CrossRefGoogle Scholar
  9. 9.
    Ranby, B., Rabek, J.F.: Photodegradation, photo-oxidation and photostabilisation of polymer, principles and application. Wiley-Interscience, New York (1975)Google Scholar
  10. 10.
    Tiong, U.H., Clark, G.: The impact of mechanical strain environment on aircraft protective coatings and corrosion protection. Journal of Aircraft, Article in press (2011)Google Scholar
  11. 11.
    Jaya, A., Tiong, U.H., Clark, G.: The interaction between corrosion management and structural integrity of aging aircraft. Fatigue & Fracture of Engineering Materials & Structures (2011) Article in pressGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Ung Hing Tiong
    • 1
    • 2
  • Graham Clark
    • 1
    • 2
  1. 1.School of Aerospace, Mechanical and Manufacturing EngineeringRMIT UniversityMelbourneAustralia
  2. 2.Defence Materials and Technology CentreHawthornAustralia

Personalised recommendations