Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate

Laminated safety glass has become an indispensable component in building construction, automotive and solar industry. It consists of at least two glass panes, that are laminated together with a polymeric interlayer. Mechanically speaking, the polymeric interlayer enables a shear transfer between t...

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Autores principales:	Miriam Schuster, Michael Kraus, Jens Schneider, Geralt Siebert
Formato:	article
Lenguaje:	EN
Publicado:	Challenging Glass Conference 2018
Materias:	Laminated glass Polymeric interlayer Thermorheological complex Time-temperature-superposition Clay industries. Ceramics. Glass TP785-869
Acceso en línea:	https://doaj.org/article/ab397bc5f33a4d9f9f03fe845f095862
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spelling	oai:doaj.org-article:ab397bc5f33a4d9f9f03fe845f0958622021-12-04T05:11:53ZAbstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate10.7480/cgc.6.23812589-8019https://doaj.org/article/ab397bc5f33a4d9f9f03fe845f0958622018-05-01T00:00:00Zhttps://proceedings.challengingglass.com/index.php/cgc/article/view/211https://doaj.org/toc/2589-8019 Laminated safety glass has become an indispensable component in building construction, automotive and solar industry. It consists of at least two glass panes, that are laminated together with a polymeric interlayer. Mechanically speaking, the polymeric interlayer enables a shear transfer between the two glass panes. Here, the difficulty lies in the understanding of the real shear transmission. On the one hand, polymeric interlayers show a time dependent material behaviour, which can be described with a ‘Prony-series’ in the linear viscoelastic area. On the other hand, polymeric interlayers show a temperature dependent material behaviour. Hence, a Prony-series is only valid for one specific temperature. However, since relaxation is based on molecular movements and rearrangement processes, which can be thermally activated, an increase in temperature leads to an acceleration of the relaxation process. The time-temperature correlation can be taken into account by means of a ‘Time-Temperature-Superposition-Principle’ (TTSP). The relaxation curve of a thermorheologically simple material shifts solely horizontal along the time axis due to temperature changes, while its shape remains constant. Mathematically, this means, that all relaxation times of the Prony-series are multiplied by the same shift factor aT. Recent research of the authors shows, that some polymeric interlayers don’t follow a simple TTSP. The experimental identification through ‘Dynamical-Mechanical-Thermal-Analysis’ as well as ‘Differential Scanning Caliometry’ and numerical incorporation of this thermorheologically complex material behaviour into state-of-the-art Finite-Element-Software will be investigated on the example of ‘Ethylene-vinyl acetate’ in the following paper. Miriam SchusterMichael KrausJens SchneiderGeralt SiebertChallenging Glass ConferencearticleLaminated glassPolymeric interlayerThermorheological complexTime-temperature-superpositionClay industries. Ceramics. GlassTP785-869ENChallenging Glass Conference Proceedings, Vol 6, Iss 1 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Laminated glass Polymeric interlayer Thermorheological complex Time-temperature-superposition Clay industries. Ceramics. Glass TP785-869
spellingShingle	Laminated glass Polymeric interlayer Thermorheological complex Time-temperature-superposition Clay industries. Ceramics. Glass TP785-869 Miriam Schuster Michael Kraus Jens Schneider Geralt Siebert Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate
description	Laminated safety glass has become an indispensable component in building construction, automotive and solar industry. It consists of at least two glass panes, that are laminated together with a polymeric interlayer. Mechanically speaking, the polymeric interlayer enables a shear transfer between the two glass panes. Here, the difficulty lies in the understanding of the real shear transmission. On the one hand, polymeric interlayers show a time dependent material behaviour, which can be described with a ‘Prony-series’ in the linear viscoelastic area. On the other hand, polymeric interlayers show a temperature dependent material behaviour. Hence, a Prony-series is only valid for one specific temperature. However, since relaxation is based on molecular movements and rearrangement processes, which can be thermally activated, an increase in temperature leads to an acceleration of the relaxation process. The time-temperature correlation can be taken into account by means of a ‘Time-Temperature-Superposition-Principle’ (TTSP). The relaxation curve of a thermorheologically simple material shifts solely horizontal along the time axis due to temperature changes, while its shape remains constant. Mathematically, this means, that all relaxation times of the Prony-series are multiplied by the same shift factor aT. Recent research of the authors shows, that some polymeric interlayers don’t follow a simple TTSP. The experimental identification through ‘Dynamical-Mechanical-Thermal-Analysis’ as well as ‘Differential Scanning Caliometry’ and numerical incorporation of this thermorheologically complex material behaviour into state-of-the-art Finite-Element-Software will be investigated on the example of ‘Ethylene-vinyl acetate’ in the following paper.
format	article
author	Miriam Schuster Michael Kraus Jens Schneider Geralt Siebert
author_facet	Miriam Schuster Michael Kraus Jens Schneider Geralt Siebert
author_sort	Miriam Schuster
title	Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate
title_short	Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate
title_full	Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate
title_fullStr	Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate
title_full_unstemmed	Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate
title_sort	abstract of: investigations on the thermorheologically complex material behaviour of the laminated safety glass interlayer ethylene-vinyl-acetate
publisher	Challenging Glass Conference
publishDate	2018
url	https://doaj.org/article/ab397bc5f33a4d9f9f03fe845f095862
work_keys_str_mv	AT miriamschuster abstractofinvestigationsonthethermorheologicallycomplexmaterialbehaviourofthelaminatedsafetyglassinterlayerethylenevinylacetate AT michaelkraus abstractofinvestigationsonthethermorheologicallycomplexmaterialbehaviourofthelaminatedsafetyglassinterlayerethylenevinylacetate AT jensschneider abstractofinvestigationsonthethermorheologicallycomplexmaterialbehaviourofthelaminatedsafetyglassinterlayerethylenevinylacetate AT geraltsiebert abstractofinvestigationsonthethermorheologicallycomplexmaterialbehaviourofthelaminatedsafetyglassinterlayerethylenevinylacetate
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Abstract of: Investigations on the Thermorheologically Complex Material Behaviour of the Laminated Safety Glass Interlayer Ethylene-Vinyl-Acetate

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