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Application of supersonic particle deposition to enhance the structural integrity of aircraft structures

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  • Special Topic: Airworthiness and Fatigue
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Abstract

Aircraft metal components and structures are susceptible to environmental degradation throughout their original design life and in many cases their extended lives. This paper summarizes the results of an experimental program to evaluate the ability of Supersonic Particle Deposition (SPD), also known as cold spray, to extend the limit of validity (LOV) of aircraft structural components and to restore the structural integrity of corroded panels. In this study [LU1]the potential for the SPD to seal the mechanically fastened joints and for this seal to remain intact even in the presence of multi-site damage (MSD) has been evaluated. By sealing the joint the onset of corrosion damage in the joint can be significantly retarded, possibly even eliminated, thereby dramatically extending the LOV of mechanically fastened joints. The study also shows that SPD can dramatically increase the damage tolerance of badly corroded wing skins.

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Authors and Affiliations

  1. Rosebank Engineering Australia, 836 Mountain Highway, Bayswater, VIC, 315, Australia

    N. Matthews

  2. Centre of Expertise in Structural Mechanics, Department of Mechanical and Aeronautical Engineering, Monash University, Wellington Rd, Clayton, Vic, 3800, Australia

    R. Jones

  3. Centre of Sustainability, Accountability and Eco-Affordability for Large and Small Structures, Lehigh University, Bethlehem, Pennsylvania, USA

    G. C. Sih

Authors
  1. N. Matthews
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  2. R. Jones
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  3. G. C. Sih
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Correspondence to N. Matthews.

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Matthews, N., Jones, R. & Sih, G.C. Application of supersonic particle deposition to enhance the structural integrity of aircraft structures. Sci. China Phys. Mech. Astron. 57, 12–18 (2014). https://doi.org/10.1007/s11433-013-5367-z

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  • DOI: https://doi.org/10.1007/s11433-013-5367-z

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