Towards mechanism-based simulation of impact damage using Exascale computingCitation formats

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Towards mechanism-based simulation of impact damage using Exascale computing. / Shterenlikht, A.; Margetts, L.; Mcdonald, Samuel; Bourne, Neil.

host publication. 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Shterenlikht, A, Margetts, L, Mcdonald, S & Bourne, N 2015, Towards mechanism-based simulation of impact damage using Exascale computing. in host publication. 19th Biennial Conference on Shock Compression of Condensed Matter (SCCM-2015), Tampa, Florida, USA, 14/06/15.

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Vancouver

Author

Bibtex

@inproceedings{f32530aed8c846758f0e6fece8d0ce69,
title = "Towards mechanism-based simulation of impact damage using Exascale computing",
abstract = "Over the past 60 years, the finite element method has been very successful in modelling deformation in engineering structures. However the method requires the definition of constitutive models that represent the response of the material to applied loads. There are two issues. Firstly, the models are often difficult to define. Secondly, there is often no physical connection between the models and the mechanisms that accommodate deformation. In this paper, we present a potentially disruptive two-level strategy which couples the finite element method in the macroscale with cellular automata in the mesoscale. The cellular automata are used to simulate mechanisms, such as crack propagation. The stress-strain relationship emerges as a continuum mechanics scale interpretation of changes at the micro- and meso-scales. Iterative two-way updating between the cellular automata and finite elements drives the simulation forward as the material undergoes progressive damage at high strain rates. The strategy is particularly attractive on large-scale computing platforms as both methods scale well on tens of thousands of CPUs.",
keywords = "Exascale, Continuum mechanics, Finite elements, Cellular automata",
author = "A. Shterenlikht and L. Margetts and Samuel Mcdonald and Neil Bourne",
year = "2015",
month = "6",
day = "14",
language = "English",
booktitle = "host publication",

}

RIS

TY - GEN

T1 - Towards mechanism-based simulation of impact damage using Exascale computing

AU - Shterenlikht, A.

AU - Margetts, L.

AU - Mcdonald, Samuel

AU - Bourne, Neil

PY - 2015/6/14

Y1 - 2015/6/14

N2 - Over the past 60 years, the finite element method has been very successful in modelling deformation in engineering structures. However the method requires the definition of constitutive models that represent the response of the material to applied loads. There are two issues. Firstly, the models are often difficult to define. Secondly, there is often no physical connection between the models and the mechanisms that accommodate deformation. In this paper, we present a potentially disruptive two-level strategy which couples the finite element method in the macroscale with cellular automata in the mesoscale. The cellular automata are used to simulate mechanisms, such as crack propagation. The stress-strain relationship emerges as a continuum mechanics scale interpretation of changes at the micro- and meso-scales. Iterative two-way updating between the cellular automata and finite elements drives the simulation forward as the material undergoes progressive damage at high strain rates. The strategy is particularly attractive on large-scale computing platforms as both methods scale well on tens of thousands of CPUs.

AB - Over the past 60 years, the finite element method has been very successful in modelling deformation in engineering structures. However the method requires the definition of constitutive models that represent the response of the material to applied loads. There are two issues. Firstly, the models are often difficult to define. Secondly, there is often no physical connection between the models and the mechanisms that accommodate deformation. In this paper, we present a potentially disruptive two-level strategy which couples the finite element method in the macroscale with cellular automata in the mesoscale. The cellular automata are used to simulate mechanisms, such as crack propagation. The stress-strain relationship emerges as a continuum mechanics scale interpretation of changes at the micro- and meso-scales. Iterative two-way updating between the cellular automata and finite elements drives the simulation forward as the material undergoes progressive damage at high strain rates. The strategy is particularly attractive on large-scale computing platforms as both methods scale well on tens of thousands of CPUs.

KW - Exascale

KW - Continuum mechanics

KW - Finite elements

KW - Cellular automata

M3 - Conference contribution

BT - host publication

ER -