Exploring self healing of CFRP laminates exposed to hypervelocity small pellets simulating space debris

B. Aïssa, E. Haddad, K. Tagziria, W. Jamroz, M. Asgar-Khan, S. V. Hoa, J. Verreault, A. Higgins, D. Therriault

Research output: Contribution to conferencePaper

Abstract

The presence in space of micrometeoroids and orbital debris, particularly in low earth orbit, presents a continuous hazard to orbiting satellites, spacecrafts and the International Space Station (ISS). Space debris includes all non-functional, man-made objects and fragments, in Earth orbit. As the population of debris continues to grow, the probability of collisions that could lead to potential damage will consequently increase. We address the feasibility of self healing of impacted composites in space. MPB Inc. and Concordia University developed and demonstrated innovative self-healing concepts that are compatible with space environment (US2009036568A1 and CA2606963A1). The self-healing process is based on microcapsules filled with 5E2N monomer, and embedded within CFRP laminates along with spread catalyst particles (Ruthenium Grubbs). A Hypervelocity launcher, recently built at McGill University within was used to simulate the space debris impact with projectiles (diameter of about 4 mm) and velocities between 1.3 and 1.7 km/s. Although the microcapsules would not heal the impact's crater zone, we insist more on the healing of potential delamination developed around the crater over distances much larger than the crater diameter. CFRP slides of laminates, with and without self healing materials, subjected to hypervelocity impacts, were characterized with the three point bending technique. Samples with microcapsules show partial healing of. Work is progressing towards optimizing the healing efficiency.

Original languageEnglish
Publication statusPublished - 1 Dec 2011
Event2nd Joint US-Canada Conference on Composites - American Society for Composites, 26th Annual Technical Conference: Canadian Association for Composite Structures and Materials - Montreal, QC, Canada
Duration: 26 Sep 201128 Sep 2011

Conference

Conference2nd Joint US-Canada Conference on Composites - American Society for Composites, 26th Annual Technical Conference: Canadian Association for Composite Structures and Materials
CountryCanada
CityMontreal, QC
Period26/9/1128/9/11

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ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanics of Materials
  • Ceramics and Composites

Cite this

Aïssa, B., Haddad, E., Tagziria, K., Jamroz, W., Asgar-Khan, M., Hoa, S. V., Verreault, J., Higgins, A., & Therriault, D. (2011). Exploring self healing of CFRP laminates exposed to hypervelocity small pellets simulating space debris. Paper presented at 2nd Joint US-Canada Conference on Composites - American Society for Composites, 26th Annual Technical Conference: Canadian Association for Composite Structures and Materials, Montreal, QC, Canada.