A fully implicit plasticity model for the characterization of ceramics in ballistic protection

Erik Simons; Jaap Weerheijm; Bert Sluijs

A fully implicit plasticity model for the characterization of ceramics in ballistic protection

Erik Simons, Jaap Weerheijm, Bert Sluijs

Applied Mechanics

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

The Johnson-Holmquist-2 ceramic model is used for quasi-static indentation simulation. A modification is proposed to an associated plasticity formulation. This allows for a fully implicit solution scheme, where dilatation is used instead of the traditional explicit bulking formulation. Dilatation is shown to have an important influence on ring-crack formation during indentation. A mesh refinement study is performed to show the current tensile failure behaviour leads to mesh-dependent results.

Original language	English
Title of host publication	22nd Technical Meeting DYMAT 'Experimental Testing and Modelling of Brittle Materials at High Strain-Rates'
Subtitle of host publication	Grenoble, France
Pages	17-22
Number of pages	6
Publication status	Published - 2016
Event	DYMAT 22ND Technical Meeting: Experimental Testing and Modelling of Brittle Materials at High Strain-Rates - Grenoble, France Duration: 19 Oct 2016 → 21 Oct 2016 Conference number: 22

Conference

Conference	DYMAT 22ND Technical Meeting
Country/Territory	France
City	Grenoble
Period	19/10/16 → 21/10/16

Keywords

Ceramic
Indentation
JH2
quasi-static
implicit

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ECSimons_paper_DYMAT_2016Accepted author manuscript, 1.21 MB

Cite this

@inproceedings{714ccf99384b4ee4bc5273c59b166abb,

title = "A fully implicit plasticity model for the characterization of ceramics in ballistic protection",

abstract = "The Johnson-Holmquist-2 ceramic model is used for quasi-static indentation simulation. A modification is proposed to an associated plasticity formulation. This allows for a fully implicit solution scheme, where dilatation is used instead of the traditional explicit bulking formulation. Dilatation is shown to have an important influence on ring-crack formation during indentation. A mesh refinement study is performed to show the current tensile failure behaviour leads to mesh-dependent results.",

keywords = "Ceramic, Indentation, JH2, quasi-static, implicit",

author = "Erik Simons and Jaap Weerheijm and Bert Sluijs",

year = "2016",

language = "English",

pages = "17--22",

booktitle = "22nd Technical Meeting DYMAT 'Experimental Testing and Modelling of Brittle Materials at High Strain-Rates'",

note = "DYMAT 22ND Technical Meeting : Experimental Testing and Modelling of Brittle Materials at High Strain-Rates ; Conference date: 19-10-2016 Through 21-10-2016",

}

A fully implicit plasticity model for the characterization of ceramics in ballistic protection. / Simons, Erik; Weerheijm, Jaap ; Sluijs, Bert.
22nd Technical Meeting DYMAT 'Experimental Testing and Modelling of Brittle Materials at High Strain-Rates': Grenoble, France. 2016. p. 17-22.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - A fully implicit plasticity model for the characterization of ceramics in ballistic protection

AU - Simons, Erik

AU - Weerheijm, Jaap

AU - Sluijs, Bert

N1 - Conference code: 22

PY - 2016

Y1 - 2016

N2 - The Johnson-Holmquist-2 ceramic model is used for quasi-static indentation simulation. A modification is proposed to an associated plasticity formulation. This allows for a fully implicit solution scheme, where dilatation is used instead of the traditional explicit bulking formulation. Dilatation is shown to have an important influence on ring-crack formation during indentation. A mesh refinement study is performed to show the current tensile failure behaviour leads to mesh-dependent results.

AB - The Johnson-Holmquist-2 ceramic model is used for quasi-static indentation simulation. A modification is proposed to an associated plasticity formulation. This allows for a fully implicit solution scheme, where dilatation is used instead of the traditional explicit bulking formulation. Dilatation is shown to have an important influence on ring-crack formation during indentation. A mesh refinement study is performed to show the current tensile failure behaviour leads to mesh-dependent results.

KW - Ceramic

KW - Indentation

KW - JH2

KW - quasi-static

KW - implicit

UR - http://resolver.tudelft.nl/uuid:714ccf99-384b-4ee4-bc52-73c59b166abb

M3 - Conference contribution

SP - 17

EP - 22

BT - 22nd Technical Meeting DYMAT 'Experimental Testing and Modelling of Brittle Materials at High Strain-Rates'

T2 - DYMAT 22ND Technical Meeting

Y2 - 19 October 2016 through 21 October 2016

ER -

A fully implicit plasticity model for the characterization of ceramics in ballistic protection

Abstract

Conference

Keywords

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