Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM

In finite element simulation of glass cracking for practical engineering problems, the method of element deletion is often used despite its shortcomings. With this technique, an element is removed from the system upon reaching a certain failure criterion. Many different formulations for the failure...

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Autores principales:	J. Pelfrene, S. van Dam, R. Sevenois, F. Gilabert, W. van Paepegem
Formato:	article
Lenguaje:	EN
Publicado:	Challenging Glass Conference 2016
Materias:	Glass Brittle Fracture FEM Element Deletion Clay industries. Ceramics. Glass TP785-869
Acceso en línea:	https://doaj.org/article/dcc047db103341e6ae00a7e80f212660
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spelling	oai:doaj.org-article:dcc047db103341e6ae00a7e80f2126602021-12-04T05:12:36ZFracture Simulation of Structural Glass by Element Deletion in Explicit FEM10.7480/cgc.5.22702589-8019https://doaj.org/article/dcc047db103341e6ae00a7e80f2126602016-06-01T00:00:00Zhttps://proceedings.challengingglass.com/index.php/cgc/article/view/165https://doaj.org/toc/2589-8019 In finite element simulation of glass cracking for practical engineering problems, the method of element deletion is often used despite its shortcomings. With this technique, an element is removed from the system upon reaching a certain failure criterion. Many different formulations for the failure behaviour of an element are possible, differentiated by the physical correctness of their representation and by their implications on the numerical stability of the calculation. In this paper, three failure models are characterised by use of a unit element model and evaluated for the drop weight impact on a monolithic glass plate. Several issues can be identified: (i) incorrect calculation of fracture energy for large-sized elements; (ii) shock wave propagation upon deletion of an element leading to spurious failure of other elements; (iii) unrealistic crack formation when the failure model does not account for crack directionality. A crack delay failure model for structural glass is proposed to avoid the aforementioned problems. This failure model uses only physical material properties as input and limits the damage rate during fracture. J. PelfreneS. van DamR. SevenoisF. GilabertW. van PaepegemChallenging Glass ConferencearticleGlassBrittleFractureFEMElement DeletionClay industries. Ceramics. GlassTP785-869ENChallenging Glass Conference Proceedings, Vol 5 (2016)
institution	DOAJ
collection	DOAJ
language	EN
topic	Glass Brittle Fracture FEM Element Deletion Clay industries. Ceramics. Glass TP785-869
spellingShingle	Glass Brittle Fracture FEM Element Deletion Clay industries. Ceramics. Glass TP785-869 J. Pelfrene S. van Dam R. Sevenois F. Gilabert W. van Paepegem Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM
description	In finite element simulation of glass cracking for practical engineering problems, the method of element deletion is often used despite its shortcomings. With this technique, an element is removed from the system upon reaching a certain failure criterion. Many different formulations for the failure behaviour of an element are possible, differentiated by the physical correctness of their representation and by their implications on the numerical stability of the calculation. In this paper, three failure models are characterised by use of a unit element model and evaluated for the drop weight impact on a monolithic glass plate. Several issues can be identified: (i) incorrect calculation of fracture energy for large-sized elements; (ii) shock wave propagation upon deletion of an element leading to spurious failure of other elements; (iii) unrealistic crack formation when the failure model does not account for crack directionality. A crack delay failure model for structural glass is proposed to avoid the aforementioned problems. This failure model uses only physical material properties as input and limits the damage rate during fracture.
format	article
author	J. Pelfrene S. van Dam R. Sevenois F. Gilabert W. van Paepegem
author_facet	J. Pelfrene S. van Dam R. Sevenois F. Gilabert W. van Paepegem
author_sort	J. Pelfrene
title	Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM
title_short	Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM
title_full	Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM
title_fullStr	Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM
title_full_unstemmed	Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM
title_sort	fracture simulation of structural glass by element deletion in explicit fem
publisher	Challenging Glass Conference
publishDate	2016
url	https://doaj.org/article/dcc047db103341e6ae00a7e80f212660
work_keys_str_mv	AT jpelfrene fracturesimulationofstructuralglassbyelementdeletioninexplicitfem AT svandam fracturesimulationofstructuralglassbyelementdeletioninexplicitfem AT rsevenois fracturesimulationofstructuralglassbyelementdeletioninexplicitfem AT fgilabert fracturesimulationofstructuralglassbyelementdeletioninexplicitfem AT wvanpaepegem fracturesimulationofstructuralglassbyelementdeletioninexplicitfem
_version_	1718372882328846336

Fracture Simulation of Structural Glass by Element Deletion in Explicit FEM

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