Engineering Mechanics

International Conference

Proceedings Vol. 24 (2018)


ENGINEERING MECHANICS 2018

24th INTERNATIONAL CONFERENCE
May 14 – 17, 2018, Svratka, Czech Republic
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Editors: Cyril Fischer and Jiří Náprstek

Copyright © 2018 Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences, Prague

ISBN 978-80-86246-88-8 (printed)
ISBN 978-80-86246-91-8 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

Molecular statics simulation of dislocation pileup using quasicontinuum method
Mikeš K., Rokoš O., Peerlings R.H.J.
pages 553 - 556, full text

In this contribution, accuracy of the QuasiContinuum (QC) methodology is studied for the case of dislocation pileup against an impenetrable obstacle in two-dimensional hexagonal lattices. To this end, a simplified shear test with a predetermined horizontal glide plane and next-to-nearest interactions described by the Lennard-Jones potential is adopted. The full molecular statics solution is computed, which is compared to two different QC simulations in terms of spatial positioning of individual dislocations along the glide plane, corresponding disregistry profiles, and dislocation core structures.


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