Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-29452 Zeitschriftenartikel Schukar, Vivien; Baitinger, Eugen; Kusche, Nadine; Steinke, F.; Habel, Wolfgang Use of spectral conditions to separate strain and temperature effects in fibre Bragg grating sensors embedded in load-carrying anisotropic laminates This work presents a further development of the methods of simultaneous determination of temperature and axial strain using a single fibre Bragg grating (FBG). The reflected spectrum of composite-embedded FBG sensors has been analyzed in order to separate temperature and load effects. We found out that during the curing process of the laminates, a superstructure has been introduced on the FBG. Analyzing this effect, a temperature and strain separation was implemented by simply calculating and comparing the integrated intensity of the spectral response signal. A mathematical four-parametric model has been developed to calculate the reflected spectrum of a superstructured fibre Bragg grating. The mathematically achieved data has been evaluated with experimentally determined data from fibre Bragg gratings embedded in glass-fibre reinforced composite materials. Norwell, Mass. Springer 2013 Experimental mechanics 54 3 421 429 10.1007/s11340-013-9773-y 2016-02-20 OPUS4-29735 Zeitschriftenartikel Shirshova, N.; Bismarck, A.; Carreyette, S.; Fontana, Q.P.V.; Greenhalgh, E.S.; Jacobsson, P.; Johansson, P.; Marczewski, M.J.; Kalinka, Gerhard; Kucernak, A.R.J.; Scheers, J.; Shaffer, M.S.P.; Steinke, J.H.G.; Wienrich, Malte Structural supercapacitor electrolytes based on bicontinuous ionic liquid-epoxy resin systems 'Structural electrolytes' retain the desirable mechanical characteristics of structural (epoxy) resins whilst introducing sufficient ionic conductivity to operate as electrolytes in electrochemical devices. Here, a series of ionic liquid-epoxy resin composites were prepared to identify the optimum system microstructure required to achieve a high level of multifunctionality. The ionic conductivity, mechanical properties, thermal stability and morphology of the cured epoxy based structural electrolytes were studied as a function of phase composition for three fully formulated high performance structural epoxy systems. At only 30 wt% of structural resin and 70 wt% of ionic liquid based electrolyte, stiff monolithic plaques with thicknesses of 2-3 mm were obtained with a room temperature ionic conductivity of 0.8 mS cm-1 and a Young's modulus of 0.2 GPa. This promising performance can be attributed to a long characteristic length scale spinodal microstructure, suggesting routes to further optimisation in the future. London [u.a.] RSC 2013 Journal of materials chemistry A 1 48 15300 15309 10.1039/c3ta13163g 2016-02-20 OPUS4-29272 Beitrag zu einem Tagungsband Greenhalgh, E.S.; Ankersen, J.; Asp, L. E.; Bismarck, A.; Fontana, Q.P.V.; Houlle, M.; Kalinka, Gerhard; Kucernak, A.; Mistry, M.; Nguyen, S.; Qian, H.; Shaffer, M.S.P.; Shirshova, N.; Steinke, J.H.G.; Wienrich, Malte Mechanical and microstructural characterisation of multifunctional structural power composites Although the inherent anisotropy of polymer composites has presented daunting technical challenges, these materials now offer engineers considerable opportunities for efficient structural design. More recently, the advent of multifunctional composites which can fulfill more than one role within a system has attracted considerable interest, providing designers with exciting opportunities to innovate. Of particular interest here are structural power composites, which simultaneously carry mechanical load whilst storing/delivering electrical energy. Although the development of these composites is highly challenging, often with conflicting constituent requirements, the STORAGE consortium has had considerable success in the development of these materials for automotive applications. The focus of this paper is structural supercapacitors, the basic architecture of a single cell of which is shown in Fig. 1. This entails two carbon fibre woven lamina (electrodes) which sandwich a glass fibre woven lamina (separator), all of which is embedded within a multifunctional matrix (electrolyte). This architecture has been the focus of the research to date, leading to components such as that shown in Fig.1 having been fabricated. This paper reports on the mechanical properties and microstructures of the different reinforcement and matrix combinations for structural supercapacitors. Canadian Association for Composite Structures and Materials 2013 ICCM19 - 19th International conference on composite materials (Proceedings) ICCM19 - 19th International conference on composite materials Montreal, Canada 28.07.2013 02.08.2013 2228 2237 2016-02-20 OPUS4-29273 Beitrag zu einem Tagungsband Shirshova, N.; Bismarck, A.; Carreyette, S.; Greenhalgh, E.S.; Johansson, P.; Marczewski, M.J.; Jacobsson, P.; Kalinka, Gerhard; Shaffer, M.S.P.; Wienrich, Malte; Steinke, J.H.G. Correlations between mechanical properties and ionic conduction of structural electrolytes with bicontinuous morphologies Electrolyte systems that can carry mechanical load while allowing for high levels of ionic conductivity are an important prerequisite for structural power storage devices. Introduction of structural power storage into the variety of consumer products will allow saving in weight and volume. Moreover, using a supercapacitor/battery system in hybrid electric vehicles (HEV), the supercapacitor part will extend the battery lifetime by protecting it from the high peak currents. To successfully produce structural power storage requires the development of multifunctional electrolytes where one has to simultaneously maximize mechanical properties and ionic conductivity. Canadian Association for Composite Structures and Materials 2013 ICCM19 - 19th International conference on composite materials (Proceedings) ICCM19 - 19th International conference on composite materials Montreal, Canada 28.07.2013 02.08.2013 72 79 2016-02-20