Self-Repairing Behavior of Shape Memory Composites

Abstract:

A shape memory composite plate has been produced by adding a shape memory interlayer between two carbon-fibre epoxy-matrix prepregs. A Small plate has been obtained which was used for testing under bending at different rates up to the final failure. The first test was performed at low rate and final damage was recovered by heating. A second bending test was performed on the self-repaired plate at high rate. As a result, a good shape recovery after damaging has been observed and a fairly good residual stiffness was measured. The residual stiffness after shape recovery was about 80% and the composite plate was able to withstand a second test at higher rate (with a residual strength about 40%). Results show that it is possible to combine shape recovery of shape memory polymers with structural properties of composite materials: the goal is producing composite structural

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 543-547
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.543
• Online since: November 2015
• Authors: Loredana Santo*, Fabrizio Quadrini, Denise Bellisario, Luigi Ciampoli
• Keywords: Residual Properties, Shape Memory Composites, Shape Recovery

References

[1] E.A. Squeo, F. Quadrini, Shape memory epoxy foams by solid-state foaming. Smart Materials and Structures. 19 (2010) 105002-105011.

DOI: 10.1088/0964-1726/19/10/105002

[2] F. Quadrini, E.A. Squeo (2008). Solid-State Foaming of Epoxy Resin, Journal of Cellular Plastics. 44 (2008) 161-173.

DOI: 10.1177/0021955x07082486

[3] C. Lucignano, C., E.A. Squeo, A. Guglielmotti, F. Quadrini Recycling of waste epoxy-polyester powders for foam production. International Journal of Manufacturing, Materials and Mechanical Engineering. 1 (2011) 10-20.

DOI: 10.4018/ijmmme.2011070102

[4] F. Quadrini, L. Santo, E.A. Squeo, Solid-state Foaming of Nano-Clay-Filled Thermoset Foams with Shape Memory Properties. Polymer-Plastics Technology and Engineering. 51 (2012) 560-567.

DOI: 10.1080/03602559.2012.654579

[5] F. Quadrini, L. Santo, E.A. Squeo (2012). Shape memory epoxy foams for space applications. Materials Letters. 69 (2012) 20-23.

[6] L. Santo, F. Quadrini, E.A. Squeo, F. Dolce, G. Mascetti, D. Bertolotto, W. Villadei, P-L. Ganga, V. Zolesi, Behavior of Shape Memory Epoxy Foams in Microgravity: Experimental Results of STS-134 Mission. Microgravity Science and Technology. 24 (2012).

DOI: 10.1007/s12217-012-9313-x

[7] L. Santo, Recent Developments in the Field of Shape Memory Epoxy Foams, Materials Science Forum. 783 – 786 (2014) 2523-2530.

DOI: 10.4028/www.scientific.net/msf.783-786.2523

[8] A. Accettura, L. Santo, F. Quadrini, Space mission opportunities using shape memory composites. Proceedings of the 63rd International Astronautical Congress, (2012).

[9] F. Quadrini, Polymer matrix composites with shape memory properties. Advanced Materials Research. 783-786 (2014) 2509-2516.

DOI: 10.4028/www.scientific.net/msf.783-786.2509

[10] L. Santo, F. Quadrini, A. Accettura, W. Villadei, Shape Memory Composites for Self-Deployable Structures in Aerospace Applications, Procedia Engineering. 88, C (2014) 42-47.

DOI: 10.1016/j.proeng.2014.11.124