Crack initiation, kinking and nanoscale damage in silica glass: Multimillion-atom molecular dynamics simulations

Y. C. Chen; K. Nomura; Z. Lu; R. Kalia; A. Nakano; P. Vashishta

doi:10.1007/978-1-4020-9557-3_2

Crack initiation, kinking and nanoscale damage in silica glass: Multimillion-atom molecular dynamics simulations

Y. C. Chen
, K. Nomura
, Z. Lu
, R. Kalia
, A. Nakano
, P. Vashishta

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

1 Scopus citations

Abstract

We present molecular dynamics (MD) simulations of crack kinking, growth, propagation and healing at the nanometer scale in a confined, pre-cracked silica glass subjected to dynamic mode II loading. The pre-crack tip kinks towards maximum mode I tension and nanometer scale cavities are nucleated in the tensile region ahead of the kink. Nanocavities coalesce with kinks to form wing cracks. Dynamics of wing cracks are dominated by coalescence with damage cavities, and the growth and healing of crack and cavities are controlled by confinement. © Springer Science+Business Media B.V. 2009.

Original language	English
Title of host publication	IUTAM Bookseries
Pages	13-17
Number of pages	5
Volume	13
DOIs	https://doi.org/10.1007/978-1-4020-9557-3_2
State	Published - Dec 1 2009
Externally published	Yes

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title = "Crack initiation, kinking and nanoscale damage in silica glass: Multimillion-atom molecular dynamics simulations",

abstract = "We present molecular dynamics (MD) simulations of crack kinking, growth, propagation and healing at the nanometer scale in a confined, pre-cracked silica glass subjected to dynamic mode II loading. The pre-crack tip kinks towards maximum mode I tension and nanometer scale cavities are nucleated in the tensile region ahead of the kink. Nanocavities coalesce with kinks to form wing cracks. Dynamics of wing cracks are dominated by coalescence with damage cavities, and the growth and healing of crack and cavities are controlled by confinement. {\textcopyright} Springer Science+Business Media B.V. 2009.",

author = "Chen, \{Y. C.\} and K. Nomura and Z. Lu and R. Kalia and A. Nakano and P. Vashishta",

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doi = "10.1007/978-1-4020-9557-3\_2",

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T1 - Crack initiation, kinking and nanoscale damage in silica glass: Multimillion-atom molecular dynamics simulations

AU - Chen, Y. C.

AU - Nomura, K.

AU - Lu, Z.

AU - Kalia, R.

AU - Nakano, A.

AU - Vashishta, P.

PY - 2009/12/1

Y1 - 2009/12/1

N2 - We present molecular dynamics (MD) simulations of crack kinking, growth, propagation and healing at the nanometer scale in a confined, pre-cracked silica glass subjected to dynamic mode II loading. The pre-crack tip kinks towards maximum mode I tension and nanometer scale cavities are nucleated in the tensile region ahead of the kink. Nanocavities coalesce with kinks to form wing cracks. Dynamics of wing cracks are dominated by coalescence with damage cavities, and the growth and healing of crack and cavities are controlled by confinement. © Springer Science+Business Media B.V. 2009.

AB - We present molecular dynamics (MD) simulations of crack kinking, growth, propagation and healing at the nanometer scale in a confined, pre-cracked silica glass subjected to dynamic mode II loading. The pre-crack tip kinks towards maximum mode I tension and nanometer scale cavities are nucleated in the tensile region ahead of the kink. Nanocavities coalesce with kinks to form wing cracks. Dynamics of wing cracks are dominated by coalescence with damage cavities, and the growth and healing of crack and cavities are controlled by confinement. © Springer Science+Business Media B.V. 2009.

UR - https://www.scopus.com/pages/publications/84862288841

U2 - 10.1007/978-1-4020-9557-3_2

DO - 10.1007/978-1-4020-9557-3_2

M3 - Conference contribution

SN - 9781402095566

VL - 13

SP - 13

EP - 17

BT - IUTAM Bookseries

ER -

Crack initiation, kinking and nanoscale damage in silica glass: Multimillion-atom molecular dynamics simulations

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