Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers

Laminated glass provides safety in an impact or explosion event by way of a polymer interlayer to which glass fragments adhere upon fracture. The mechanical deformation of the interlayer defines how the impact energy can be absorbed to prevent calamities by flying glass debris, penetration of a bla...

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Autores principales:	Joren Pelfrene, Sam Van Dam, Siebe Spronk, Wim Van Paepegem
Formato:	article
Lenguaje:	EN
Publicado:	Challenging Glass Conference 2018
Materias:	Laminated Glass PVB Interlayer Material Model Clay industries. Ceramics. Glass TP785-869
Acceso en línea:	https://doaj.org/article/083684cb85dd4650ad1a0e903b85aca3
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spelling	oai:doaj.org-article:083684cb85dd4650ad1a0e903b85aca32021-12-04T05:12:06ZExperimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers10.7480/cgc.6.21662589-8019https://doaj.org/article/083684cb85dd4650ad1a0e903b85aca32018-05-01T00:00:00Zhttps://proceedings.challengingglass.com/index.php/cgc/article/view/243https://doaj.org/toc/2589-8019 Laminated glass provides safety in an impact or explosion event by way of a polymer interlayer to which glass fragments adhere upon fracture. The mechanical deformation of the interlayer defines how the impact energy can be absorbed to prevent calamities by flying glass debris, penetration of a blast wave, lacerations, etc. The PVB interlayer used in safety glass shows highly nonlinear viscoelastic material behaviour, with a great sensitivity to temperature and deformation rate. Although various material models for PVB can be found in literature, few publications discuss the full range of its mechanical behaviour and none are found to describe a material model that is valid in a wide range of deformation rates and up to high elongations. Such material model is necessary for the numerical study of the post-fracture response in a dynamic event. The article describes the mechanical behaviour of PVB interlayer and the constitutive models by which the polymer can be represented under different load cases. Tensile experiments of Saflex® PVB are presented for a wide range of deformation rates and up to tearing of the specimens. Subsequently, a method to calibrate a hyper-viscoelastic material model for the interlayer by numerically simulating the tensile tests is developed. The resulting material models are valid up to the tearing strain of the interlayer and are accurate within a specified range of deformation rates and temperatures. Joren PelfreneSam Van DamSiebe SpronkWim Van PaepegemChallenging Glass ConferencearticleLaminated GlassPVB InterlayerMaterial ModelClay industries. Ceramics. GlassTP785-869ENChallenging Glass Conference Proceedings, Vol 6, Iss 1 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Laminated Glass PVB Interlayer Material Model Clay industries. Ceramics. Glass TP785-869
spellingShingle	Laminated Glass PVB Interlayer Material Model Clay industries. Ceramics. Glass TP785-869 Joren Pelfrene Sam Van Dam Siebe Spronk Wim Van Paepegem Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers
description	Laminated glass provides safety in an impact or explosion event by way of a polymer interlayer to which glass fragments adhere upon fracture. The mechanical deformation of the interlayer defines how the impact energy can be absorbed to prevent calamities by flying glass debris, penetration of a blast wave, lacerations, etc. The PVB interlayer used in safety glass shows highly nonlinear viscoelastic material behaviour, with a great sensitivity to temperature and deformation rate. Although various material models for PVB can be found in literature, few publications discuss the full range of its mechanical behaviour and none are found to describe a material model that is valid in a wide range of deformation rates and up to high elongations. Such material model is necessary for the numerical study of the post-fracture response in a dynamic event. The article describes the mechanical behaviour of PVB interlayer and the constitutive models by which the polymer can be represented under different load cases. Tensile experiments of Saflex® PVB are presented for a wide range of deformation rates and up to tearing of the specimens. Subsequently, a method to calibrate a hyper-viscoelastic material model for the interlayer by numerically simulating the tensile tests is developed. The resulting material models are valid up to the tearing strain of the interlayer and are accurate within a specified range of deformation rates and temperatures.
format	article
author	Joren Pelfrene Sam Van Dam Siebe Spronk Wim Van Paepegem
author_facet	Joren Pelfrene Sam Van Dam Siebe Spronk Wim Van Paepegem
author_sort	Joren Pelfrene
title	Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers
title_short	Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers
title_full	Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers
title_fullStr	Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers
title_full_unstemmed	Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers
title_sort	experimental characterization and finite element modelling of strain-rate dependent hyperelastic properties of pvb interlayers
publisher	Challenging Glass Conference
publishDate	2018
url	https://doaj.org/article/083684cb85dd4650ad1a0e903b85aca3
work_keys_str_mv	AT jorenpelfrene experimentalcharacterizationandfiniteelementmodellingofstrainratedependenthyperelasticpropertiesofpvbinterlayers AT samvandam experimentalcharacterizationandfiniteelementmodellingofstrainratedependenthyperelasticpropertiesofpvbinterlayers AT siebespronk experimentalcharacterizationandfiniteelementmodellingofstrainratedependenthyperelasticpropertiesofpvbinterlayers AT wimvanpaepegem experimentalcharacterizationandfiniteelementmodellingofstrainratedependenthyperelasticpropertiesofpvbinterlayers
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Experimental Characterization and Finite Element Modelling of Strain-rate Dependent Hyperelastic Properties of PVB Interlayers

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