Central-force decomposition of spline-based modified embedded atom method potential - Publikacja - MOST Wiedzy

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Central-force decomposition of spline-based modified embedded atom method potential

Abstrakt

Central-force decompositions are fundamental to the calculation of stress fields in atomic systems by means of Hardy stress. We derive expressions for a central-force decomposition of the spline-based modified embedded atom method (s-MEAM) potential. The expressions are subsequently simplified to a form that can be readily used in molecular-dynamics simulations, enabling the calculation of the spatial distribution of stress in systems treated with this novel class of empirical potentials. We briefly discuss the properties of the obtained decomposition and highlight further computational techniques that can be expected to benefit from the results of this work. To demonstrate the practicability of the derived expressions, we apply them to calculate stress fields due to an edge dislocation in bcc Mo, comparing their predictions to those of linear elasticity theory.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING nr 24, wydanie 7, strony 1 - 28,
ISSN: 0965-0393
Język:
angielski
Rok wydania:
2016
Opis bibliograficzny:
Winczewski S., Dziedzic J., Rybicki J.: Central-force decomposition of spline-based modified embedded atom method potential// MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING. -Vol. 24, iss. 7 (2016), s.1-28
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1088/0965-0393/24/7/075003
Weryfikacja:
Politechnika Gdańska

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