Shape memory composites (SMCs) are attractive materials as they combine typical mechanical and functional properties of composites with shape memory properties. Such properties can be given to composite materials and structures by using shape memory polymer (SMP) matrices or integrating parts made of SMPs. In the case of integration, flexible composite skins can be applied over a shape memory foam core obtaining composite sandwich that can be shaped to change its stiffness or to reduce its volume. After the application of a given stimulus (generally by heating) the initial shape can be recovered. Future applications for this class of materials are self-deployable structures for space systems (such as actuators of solar sails or smart aerodynamic structures). In this work, two new SMC self-deployable structures were prototyped: a composite cross and a composite frame containing a thin aluminum sheet. The former structure represents a possible deploying configuration for a structural sheet whereas the latter is a conceptual study of a solar sail. The experimental results are very promising, showing that such structures can successfully self-deploy following the desired design constraints without noticeable damages. Finally, new perspectives for applications are highlighted.

Santo, L., Quadrini, F., Accettura, A., & Villadei, W. (2014). Shape memory composites for self-deployable structures in aerospace applications. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? 1st International Symposium on Dynamic Response and Failure of Composite Materials, DRaF 2014; Ischia, Naples; Italy; 14 September 2014 through 17 September 2014; Code 110926 [10.1016/j.proeng.2014.11.124].

Shape memory composites for self-deployable structures in aerospace applications

SANTO, LOREDANA;QUADRINI, FABRIZIO;
2014

Abstract

Shape memory composites (SMCs) are attractive materials as they combine typical mechanical and functional properties of composites with shape memory properties. Such properties can be given to composite materials and structures by using shape memory polymer (SMP) matrices or integrating parts made of SMPs. In the case of integration, flexible composite skins can be applied over a shape memory foam core obtaining composite sandwich that can be shaped to change its stiffness or to reduce its volume. After the application of a given stimulus (generally by heating) the initial shape can be recovered. Future applications for this class of materials are self-deployable structures for space systems (such as actuators of solar sails or smart aerodynamic structures). In this work, two new SMC self-deployable structures were prototyped: a composite cross and a composite frame containing a thin aluminum sheet. The former structure represents a possible deploying configuration for a structural sheet whereas the latter is a conceptual study of a solar sail. The experimental results are very promising, showing that such structures can successfully self-deploy following the desired design constraints without noticeable damages. Finally, new perspectives for applications are highlighted.
1st International Symposium on Dynamic Response and Failure of Composite Materials, DRaF 2014; Ischia, Naples; Italy; 14 September 2014 through 17 September 2014; Code 110926
Rilevanza internazionale
su invito
Settore ING-IND/16 - Tecnologie e Sistemi di Lavorazione
English
Intervento a convegno
Santo, L., Quadrini, F., Accettura, A., & Villadei, W. (2014). Shape memory composites for self-deployable structures in aerospace applications. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? 1st International Symposium on Dynamic Response and Failure of Composite Materials, DRaF 2014; Ischia, Naples; Italy; 14 September 2014 through 17 September 2014; Code 110926 [10.1016/j.proeng.2014.11.124].
Santo, L; Quadrini, F; Accettura, A; Villadei, W
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/159413
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