Repair of damage in aircraft composite sound-absorbing panels -LUPIN.pdf (2.15 MB)
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Repair of damage in aircraft composite sound-absorbing panels

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journal contribution
posted on 22.01.2015, 14:35 by Aleksandr N. Anoshkin, Valeriy Y. Zuiko, Mikhail A. Tashkinov, Vadim SilberschmidtVadim Silberschmidt
This work is focused on analysis of mechanical behaviour of aircraft engine's sound-absorbing panels (SAPs) exposed to in-service damage. Its aim is to suggest techniques of local repair of damaged SAPs and estimation of their post-repair residual strength. Fibreglass laminate panels with tubular core and perforated elements were studied for this purpose. A mechanical behaviour of structural elements of the panels was modelled with the finite-element (FE) analysis, with through rupture considered as an in-service defect. A technique of defect repair without dismantling parts from the structure is introduced using a novel vacuumless technology. This procedure was implemented on specially produced samples and simulated with FE. Residual strength of repaired samples was compared with that of standard and ruptured ones in tension experiments and FE analysis. Conclusions about applicability limits of the presented method are provided.


This work was supported by The Royal Society and The Russian Foundation for Basic Research (Project 13-01-92608).



  • Mechanical, Electrical and Manufacturing Engineering

Published in

Composite Structures




153 - 166


ANOSHKIN, A.N. ... et al, 2015. Repair of damage in aircraft composite sound-absorbing panels. Composite Structures, 120, pp. 153 - 166.


© Elsevier Ltd


AM (Accepted Manuscript)

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This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at:

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NOTICE: this is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, Vol 120, 2015, DOI: 10.1016/j.compstruct.2014.10.001



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