Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation

An understanding of the impact response of glass plates is important to protect people from injury. We investigated the fracture mode of a float glass plate that fractured under a low-velocity impact and conducted a numerical simulation. First, an impact fracture experiment of a float glass plate wa...

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Autores principales:	Tomohisa KOJIMA, Masahiro SUZUKI, Yuta TAJIRI, Kazuhiro UTAKAWA, Mitsuo NOTOMI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2019
Materias:	glass impact fracture fracture mode numerical simulation finite element method damage model Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/3b05dc6d65c44800bcbcc92c329bb051
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id	oai:doaj.org-article:3b05dc6d65c44800bcbcc92c329bb051
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spelling	oai:doaj.org-article:3b05dc6d65c44800bcbcc92c329bb0512021-11-29T05:48:33ZFracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation2187-974510.1299/mej.19-00316https://doaj.org/article/3b05dc6d65c44800bcbcc92c329bb0512019-11-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/6/6/6_19-00316/_pdf/-char/enhttps://doaj.org/toc/2187-9745An understanding of the impact response of glass plates is important to protect people from injury. We investigated the fracture mode of a float glass plate that fractured under a low-velocity impact and conducted a numerical simulation. First, an impact fracture experiment of a float glass plate was carried out using a dropping weight, and crack development in the thickness direction of the glass plate was observed by a shadowgraph method. Then the numerical simulation was conducted applying two types of material models to the float glass: the Johnson–Holmquist model and the elastic model with tensile pressure failure. The two models were used in a simulation and the results were compared with the experimental result. At an impact velocity of 4.43 m/s, which correspond to the deformation velocity of the glass plate of 6.1 m/s in deflection, simulation with the Johnson–Holmquist model could reproduce the strain response of the glass plate but it could not reproduce the fracture mode of the glass plate. This result implied the limitation of applying the damage model to low-velocity impact for simulating the fracture mode of a glass plate. In the material model with elastic as the constitutive law and tensile pressure failure as the failure model, the simulated fracture strength of the glass plate was the same as the experimental fracture strength, and the fracture mode showed characteristics of the bending fracture mode that was observed in the experiment, although the fracture initiation time of the glass plate was slightly delayed in the strain history. In the low-velocity impact where the influence of inertia was small, the glass plate response could be reproduced easily using the elastic model. The efficacy of the model was confirmed in the simulation result with several deformation velocities.Tomohisa KOJIMAMasahiro SUZUKIYuta TAJIRIKazuhiro UTAKAWAMitsuo NOTOMIThe Japan Society of Mechanical Engineersarticleglassimpactfracturefracture modenumerical simulationfinite element methoddamage modelMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 6, Iss 6, Pp 19-00316-19-00316 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	glass impact fracture fracture mode numerical simulation finite element method damage model Mechanical engineering and machinery TJ1-1570
spellingShingle	glass impact fracture fracture mode numerical simulation finite element method damage model Mechanical engineering and machinery TJ1-1570 Tomohisa KOJIMA Masahiro SUZUKI Yuta TAJIRI Kazuhiro UTAKAWA Mitsuo NOTOMI Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
description	An understanding of the impact response of glass plates is important to protect people from injury. We investigated the fracture mode of a float glass plate that fractured under a low-velocity impact and conducted a numerical simulation. First, an impact fracture experiment of a float glass plate was carried out using a dropping weight, and crack development in the thickness direction of the glass plate was observed by a shadowgraph method. Then the numerical simulation was conducted applying two types of material models to the float glass: the Johnson–Holmquist model and the elastic model with tensile pressure failure. The two models were used in a simulation and the results were compared with the experimental result. At an impact velocity of 4.43 m/s, which correspond to the deformation velocity of the glass plate of 6.1 m/s in deflection, simulation with the Johnson–Holmquist model could reproduce the strain response of the glass plate but it could not reproduce the fracture mode of the glass plate. This result implied the limitation of applying the damage model to low-velocity impact for simulating the fracture mode of a glass plate. In the material model with elastic as the constitutive law and tensile pressure failure as the failure model, the simulated fracture strength of the glass plate was the same as the experimental fracture strength, and the fracture mode showed characteristics of the bending fracture mode that was observed in the experiment, although the fracture initiation time of the glass plate was slightly delayed in the strain history. In the low-velocity impact where the influence of inertia was small, the glass plate response could be reproduced easily using the elastic model. The efficacy of the model was confirmed in the simulation result with several deformation velocities.
format	article
author	Tomohisa KOJIMA Masahiro SUZUKI Yuta TAJIRI Kazuhiro UTAKAWA Mitsuo NOTOMI
author_facet	Tomohisa KOJIMA Masahiro SUZUKI Yuta TAJIRI Kazuhiro UTAKAWA Mitsuo NOTOMI
author_sort	Tomohisa KOJIMA
title	Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
title_short	Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
title_full	Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
title_fullStr	Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
title_full_unstemmed	Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
title_sort	fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation
publisher	The Japan Society of Mechanical Engineers
publishDate	2019
url	https://doaj.org/article/3b05dc6d65c44800bcbcc92c329bb051
work_keys_str_mv	AT tomohisakojima fracturemodeofglassplatesubjecttolowvelocityimpactexperimentalinvestigationandfiniteelementsimulation AT masahirosuzuki fracturemodeofglassplatesubjecttolowvelocityimpactexperimentalinvestigationandfiniteelementsimulation AT yutatajiri fracturemodeofglassplatesubjecttolowvelocityimpactexperimentalinvestigationandfiniteelementsimulation AT kazuhiroutakawa fracturemodeofglassplatesubjecttolowvelocityimpactexperimentalinvestigationandfiniteelementsimulation AT mitsuonotomi fracturemodeofglassplatesubjecttolowvelocityimpactexperimentalinvestigationandfiniteelementsimulation
_version_	1718407579116240896

Fracture mode of glass plate subject to low-velocity impact: experimental investigation and finite element simulation

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