TY - GEN
T1 - Exploring self healing of CFRP laminates exposed to hypervelocity small pellets simulating space debris
AU - Aïssa, B.
AU - Haddad, E.
AU - Tagziria, K.
AU - Jamroz, W.
AU - Asgar-Khan, M.
AU - Hoa, S. V.
AU - Verreault, J.
AU - Higgins, A.
AU - Therriault, D.
PY - 2011
Y1 - 2011
N2 - 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 1.7km/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.
AB - 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 1.7km/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.
UR - http://www.scopus.com/inward/record.url?scp=84865637030&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84865637030
SN - 9781618391964
T3 - 26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
SP - 2701
EP - 2719
BT - 26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
T2 - 26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
Y2 - 26 September 2011 through 28 September 2011
ER -