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Proceedings Paper • Open Access

Mitigating the effect of space small debris on COPV in space with fiber sensors monitoring and self‐repairing materials
Author(s): Emile Haddad; Yi Zhao; Mert Celikin; Matteo Basti; Kamel Tagziria; Elad Wallach; Christopher Semprimoschnig; Ugo Lafont; Iain McKenzie

Paper Abstract

Small space debris are a high risk for the walls of Composite Overwrapped Pressure Vessels (COPV), by making small holes and causing the fuel leak. Commonly the self-healing materials are used to keep the mechanical structure strength, here the hermeticity of the repaired portion is a stringent requirement, to prevent any potential fuel leak from the cryogenic tank in vacuum. The efficiency is compared for protective walls composed of a combination of various layers, using strong materials (Kevlar, Nextel) and self-healing commercial materials developed as bulletproof, e.g. the Ethylene-co-Meth Acrylic Acid (EMAA) and ReverlinkTM.

The small debris impact dynamic was detected and monitored with Fiber Bragg Gratings (FBG) sensors at very fast acquisition frequencies, up to 0.5 GHz (2 ns), measuring the variation of the total reflected signal by the FBG. The acquisition system is based on commercially available products. To measure the total wavelength spectrum, the fastest available spectrometer can go up to 2 MHz acquisition (Micron-Optics), which is insufficient to detect the hypervelocity impact. The impact pressure evolution of the FBG, placed in the middle layer, was compared with commonly used strain gauges placed a few layers further or on the back of the last layer. The measured impact time delay and relative intensity were compatible between the two sensing methods.

Some samples were characterized in details using the X-ray Computed Tomography at ESTEC, they permitted us to confirm the results by observing the details of the healing and follow the impact trajectory visually.

Paper Details

Date Published: 12 July 2019
PDF: 13 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111807C (12 July 2019); doi: 10.1117/12.2536183
Show Author Affiliations
Emile Haddad, MPB Communications Inc. (Canada)
Yi Zhao, INRS-Institut Armand-Frappier (Canada)
Mert Celikin, INRS-Institut Armand-Frappier (Canada)
Matteo Basti, INRS-Institut Armand-Frappier (Canada)
Kamel Tagziria, MPB Communications Inc. (Canada)
Elad Wallach, MPB Communications Inc. (Canada)
Christopher Semprimoschnig, European Space Research and Technology Ctr. (Netherlands)
Ugo Lafont, European Space Research and Technology Ctr. (Netherlands)
Iain McKenzie, European Space Research and Technology Ctr. (Netherlands)

Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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