Deformation and failure of bulk metallic glasses under different initial temperatures

J. C. Li; X. W. Chen; F. L. Huang

doi:10.1051/epjconf/20159404017

Deformation and failure of bulk metallic glasses under different initial temperatures

J. C. Li, X. W. Chen^*, F. L. Huang

^*Corresponding author for this work

School of Mechatronical Engineering

China Academy of Engineering Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Based on the coupled thermo-mechanical model, a constitutive model for bulk metallic glasses (BMGs), which is generalized to the multi-axial stress state and considers the effects of free volume, heat and hydrostatic stress, has been modified in the present paper. Besides, a failure criterion of critical free volume concentration is introduced based on the coalescence mechanism of free volume. The constitutive model as well as the failure criterion is implemented into the LS-DYNA commercial software by user material subroutine (UMAT). Then FEM simulations for different initial material temperatures are conducted and the evolutions of material parameter as well as corresponding macroscopic mechanical behaviour of material are analyzed. Relative analysis shows that the initial material temperature significantly affects the deformation and failure of material.

Original language	English
Title of host publication	DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading
Editors	Ezio Cadoni
Publisher	EDP Sciences
ISBN (Electronic)	9782759818174
DOIs	https://doi.org/10.1051/epjconf/20159404017
Publication status	Published - 7 Sept 2015
Event	11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015 - Lugano, Switzerland Duration: 7 Sept 2015 → 11 Sept 2015

Publication series

Name	EPJ Web of Conferences
Volume	94
ISSN (Print)	2101-6275
ISSN (Electronic)	2100-014X

Conference

Conference	11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015
Country/Territory	Switzerland
City	Lugano
Period	7/09/15 → 11/09/15

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10.1051/epjconf/20159404017

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Li, J. C., Chen, X. W., & Huang, F. L. (2015). Deformation and failure of bulk metallic glasses under different initial temperatures. In E. Cadoni (Ed.), DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading Article 04017 (EPJ Web of Conferences; Vol. 94). EDP Sciences. https://doi.org/10.1051/epjconf/20159404017

@inproceedings{61f4d02919d34d19942d8bb35dea14ec,

title = "Deformation and failure of bulk metallic glasses under different initial temperatures",

abstract = "Based on the coupled thermo-mechanical model, a constitutive model for bulk metallic glasses (BMGs), which is generalized to the multi-axial stress state and considers the effects of free volume, heat and hydrostatic stress, has been modified in the present paper. Besides, a failure criterion of critical free volume concentration is introduced based on the coalescence mechanism of free volume. The constitutive model as well as the failure criterion is implemented into the LS-DYNA commercial software by user material subroutine (UMAT). Then FEM simulations for different initial material temperatures are conducted and the evolutions of material parameter as well as corresponding macroscopic mechanical behaviour of material are analyzed. Relative analysis shows that the initial material temperature significantly affects the deformation and failure of material.",

author = "Li, {J. C.} and Chen, {X. W.} and Huang, {F. L.}",

note = "Publisher Copyright: {\textcopyright} 2015 Owned by the authors, published by EDP Sciences.; 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015 ; Conference date: 07-09-2015 Through 11-09-2015",

year = "2015",

month = sep,

day = "7",

doi = "10.1051/epjconf/20159404017",

language = "English",

series = "EPJ Web of Conferences",

publisher = "EDP Sciences",

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booktitle = "DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading",

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}

Li, JC, Chen, XW & Huang, FL 2015, Deformation and failure of bulk metallic glasses under different initial temperatures. in E Cadoni (ed.), DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading., 04017, EPJ Web of Conferences, vol. 94, EDP Sciences, 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015, Lugano, Switzerland, 7/09/15. https://doi.org/10.1051/epjconf/20159404017

Deformation and failure of bulk metallic glasses under different initial temperatures. / Li, J. C.; Chen, X. W.; Huang, F. L.
DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading. ed. / Ezio Cadoni. EDP Sciences, 2015. 04017 (EPJ Web of Conferences; Vol. 94).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Deformation and failure of bulk metallic glasses under different initial temperatures

AU - Li, J. C.

AU - Chen, X. W.

AU - Huang, F. L.

PY - 2015/9/7

Y1 - 2015/9/7

N2 - Based on the coupled thermo-mechanical model, a constitutive model for bulk metallic glasses (BMGs), which is generalized to the multi-axial stress state and considers the effects of free volume, heat and hydrostatic stress, has been modified in the present paper. Besides, a failure criterion of critical free volume concentration is introduced based on the coalescence mechanism of free volume. The constitutive model as well as the failure criterion is implemented into the LS-DYNA commercial software by user material subroutine (UMAT). Then FEM simulations for different initial material temperatures are conducted and the evolutions of material parameter as well as corresponding macroscopic mechanical behaviour of material are analyzed. Relative analysis shows that the initial material temperature significantly affects the deformation and failure of material.

AB - Based on the coupled thermo-mechanical model, a constitutive model for bulk metallic glasses (BMGs), which is generalized to the multi-axial stress state and considers the effects of free volume, heat and hydrostatic stress, has been modified in the present paper. Besides, a failure criterion of critical free volume concentration is introduced based on the coalescence mechanism of free volume. The constitutive model as well as the failure criterion is implemented into the LS-DYNA commercial software by user material subroutine (UMAT). Then FEM simulations for different initial material temperatures are conducted and the evolutions of material parameter as well as corresponding macroscopic mechanical behaviour of material are analyzed. Relative analysis shows that the initial material temperature significantly affects the deformation and failure of material.

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U2 - 10.1051/epjconf/20159404017

DO - 10.1051/epjconf/20159404017

M3 - Conference contribution

AN - SCOPUS:84958061333

T3 - EPJ Web of Conferences

BT - DYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading

A2 - Cadoni, Ezio

PB - EDP Sciences

T2 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015

Y2 - 7 September 2015 through 11 September 2015

ER -

Deformation and failure of bulk metallic glasses under different initial temperatures

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