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Experiments and analytical modeling for designing tape spring composites
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg.
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg.ORCID-id: 0000-0001-6802-8331
2017 (engelsk)Inngår i: ICCM International Conferences on Composite Materials, International Committee on Composite Materials , 2017Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Lightweight fiber reinforced tape spring composites are proposed for deployable space structures for nanosatellites. Neutral stable carbon fiber tape springs and bi-stable glass fiber tape springs were manufactured and their self-deployabilities after stowage were experimentally tested. The viscoelastic effects of the composites used were experimentally investigated. An analysis methodology that predicts neutral stability or bi-stability in appropriately arranging fiber directions, layups and fabric properties is presented. A design method flowchart is presented to give a reference for designing neutral or bi-stable tape springs based on the experiments and the analytical model, e.g., material type, layup, fibers direction and stability parameters. The tape spring properties before and after stowage can be predicted. The analytical model shows that fabrics of high strength fibers and low shear modulus resin with layer angle ±45° are good choices for neutrally tape springs and adding inner 0°/90° layers can increase the deployment force for bi-stable tape springs. The bi-stable glass fiber tape springs that can self-deploy after more than 6 months of stowage and high strength carbon fiber neutrally tape springs were fabricated. 

sted, utgiver, år, opplag, sider
International Committee on Composite Materials , 2017.
Emneord [en]
Bi-stable tape springs, Fiber reinforced composites, Neutrally stable tape springs, Tape spring design, Viscoelasticity
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-236824Scopus ID: 2-s2.0-85053136408OAI: oai:DiVA.org:kth-236824DiVA, id: diva2:1275777
Konferanse
21st International Conference on Composite Materials, ICCM 2017, 20 August 2017 through 25 August 2017
Forskningsfinansiär
EU, FP7, Seventh Framework Programme
Merknad

QC 20190107

Tilgjengelig fra: 2019-01-07 Laget: 2019-01-07 Sist oppdatert: 2019-01-07bibliografisk kontrollert

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