Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA

Cavitation in rubber-like materials describes sudden void growth of an initially voided material under hydrostatic tension until the material fails. To study the cavitation effect numerically, classical cavitation criteria are coupled with a continuum damage formulation of a Neo-Hookean material. A...

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Autores principales:	Michael Drass, Vladimir A. Kolupaev, Jens Schneider, Stefan Kolling
Formato:	article
Lenguaje:	EN
Publicado:	Challenging Glass Conference 2018
Materias:	TSSA Compressible hyperelasticity Cavitation criteria Continuum damage formulation Clay industries. Ceramics. Glass TP785-869
Acceso en línea:	https://doaj.org/article/4ca6f941c07d45e4bce5826ed71c720e
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spelling	oai:doaj.org-article:4ca6f941c07d45e4bce5826ed71c720e2021-12-04T05:11:56ZAbstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA10.7480/cgc.6.23752589-8019https://doaj.org/article/4ca6f941c07d45e4bce5826ed71c720e2018-05-01T00:00:00Zhttps://proceedings.challengingglass.com/index.php/cgc/article/view/132https://doaj.org/toc/2589-8019 Cavitation in rubber-like materials describes sudden void growth of an initially voided material under hydrostatic tension until the material fails. To study the cavitation effect numerically, classical cavitation criteria are coupled with a continuum damage formulation of a Neo-Hookean material. A cavitation criterion defines a failure surface in threedimensional stress or strain space, which represents the onset of excessive void growth and therefore the strong degradation of the bulk modulus. To account for this special case of material softening, a novel continuum damage formulation at finite strains is presented, where the initially constant bulk modulus of a hyperelastic material is reduced after satisfying a cavitation criterion. Since this formulation leads to an abrupt damage initiation, additionally a continuously volumetric damage formulation is proposed and compared with it. Therefore, novel void growth criteria are developed, which describe the cavitation effect even under smallest volumetric strains. For numerical validation, a single element test is simulated under hydrostatic tension. Furthermore, pancake tests are numerically analysed. The results with regard on the chosen cavitation criterion and the abrupt/continuously damage formulation are compared with each other analysing TSSA. Michael DrassVladimir A. KolupaevJens SchneiderStefan KollingChallenging Glass ConferencearticleTSSACompressible hyperelasticityCavitation criteriaContinuum damage formulationClay industries. Ceramics. GlassTP785-869ENChallenging Glass Conference Proceedings, Vol 6, Iss 1 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	TSSA Compressible hyperelasticity Cavitation criteria Continuum damage formulation Clay industries. Ceramics. Glass TP785-869
spellingShingle	TSSA Compressible hyperelasticity Cavitation criteria Continuum damage formulation Clay industries. Ceramics. Glass TP785-869 Michael Drass Vladimir A. Kolupaev Jens Schneider Stefan Kolling Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA
description	Cavitation in rubber-like materials describes sudden void growth of an initially voided material under hydrostatic tension until the material fails. To study the cavitation effect numerically, classical cavitation criteria are coupled with a continuum damage formulation of a Neo-Hookean material. A cavitation criterion defines a failure surface in threedimensional stress or strain space, which represents the onset of excessive void growth and therefore the strong degradation of the bulk modulus. To account for this special case of material softening, a novel continuum damage formulation at finite strains is presented, where the initially constant bulk modulus of a hyperelastic material is reduced after satisfying a cavitation criterion. Since this formulation leads to an abrupt damage initiation, additionally a continuously volumetric damage formulation is proposed and compared with it. Therefore, novel void growth criteria are developed, which describe the cavitation effect even under smallest volumetric strains. For numerical validation, a single element test is simulated under hydrostatic tension. Furthermore, pancake tests are numerically analysed. The results with regard on the chosen cavitation criterion and the abrupt/continuously damage formulation are compared with each other analysing TSSA.
format	article
author	Michael Drass Vladimir A. Kolupaev Jens Schneider Stefan Kolling
author_facet	Michael Drass Vladimir A. Kolupaev Jens Schneider Stefan Kolling
author_sort	Michael Drass
title	Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA
title_short	Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA
title_full	Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA
title_fullStr	Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA
title_full_unstemmed	Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA
title_sort	abstract of: on cavitation in transparent structural silicone adhesive: tssa
publisher	Challenging Glass Conference
publishDate	2018
url	https://doaj.org/article/4ca6f941c07d45e4bce5826ed71c720e
work_keys_str_mv	AT michaeldrass abstractofoncavitationintransparentstructuralsiliconeadhesivetssa AT vladimirakolupaev abstractofoncavitationintransparentstructuralsiliconeadhesivetssa AT jensschneider abstractofoncavitationintransparentstructuralsiliconeadhesivetssa AT stefankolling abstractofoncavitationintransparentstructuralsiliconeadhesivetssa
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Abstract of: On Cavitation in Transparent Structural Silicone Adhesive: TSSA

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