Necking in single-crystal fcc copper nanobeams
(2016) Nordic Seminar in Computationa MEchanics- Abstract
- Molecular dynamic simulation of nanosized single-crystal copper beams loaded in tension at different strain rates until necking has been performed for two different crystallographic orientations, the [100]- and the [110]-orientations. The molecular dynamics freeware code LAMMPS was employed for the simulations. It was found that, at low enough strain rates, single necking was obtained for both crystallographic orientations and at high enough strain rates both orientations showed necking at both ends. However, the behavior differed between the orientations at intermediate strain rates. For the [100]-
orientation multiple necking zones developed which not occurred for the [110]-orientation. This followed from the different developments... (More) - Molecular dynamic simulation of nanosized single-crystal copper beams loaded in tension at different strain rates until necking has been performed for two different crystallographic orientations, the [100]- and the [110]-orientations. The molecular dynamics freeware code LAMMPS was employed for the simulations. It was found that, at low enough strain rates, single necking was obtained for both crystallographic orientations and at high enough strain rates both orientations showed necking at both ends. However, the behavior differed between the orientations at intermediate strain rates. For the [100]-
orientation multiple necking zones developed which not occurred for the [110]-orientation. This followed from the different developments of the plasticity in the beams between the orientations. (Less) - Abstract (Swedish)
- Molecular dynamic simulation of nanosized single-crystal copper beams loaded in tension at different strain rates until necking has been performed for two different crystallographic orientations, the [100]- and the [110]-orientations. The molecular dynamics freeware code LAMMPS was employed for the simulations. It was found that, at low enough strain rates, single necking was obtained for both crystallographic orientations and at high enough strain rates both orientations showed necking at both ends. However, the behavior differed between the orientations at intermediate strain rates. For the [100]- orientation multiple necking zones developed which not occurred for the [110]-orientation. This followed from the different developments of... (More)
- Molecular dynamic simulation of nanosized single-crystal copper beams loaded in tension at different strain rates until necking has been performed for two different crystallographic orientations, the [100]- and the [110]-orientations. The molecular dynamics freeware code LAMMPS was employed for the simulations. It was found that, at low enough strain rates, single necking was obtained for both crystallographic orientations and at high enough strain rates both orientations showed necking at both ends. However, the behavior differed between the orientations at intermediate strain rates. For the [100]- orientation multiple necking zones developed which not occurred for the [110]-orientation. This followed from the different developments of the plasticity in the beams between the orientations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/6976a312-7b12-4b13-852a-f3a4bb1ceb50
- author
- Ahadi, Aylin LU and Melin, Solveig LU
- organization
- publishing date
- 2016
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- single-crystal copper, Necking, Nanobeams
- host publication
- Proceedings to the 29th Nordic Seminar in Computational Mechanics
- pages
- 4 pages
- conference name
- Nordic Seminar in Computationa MEchanics
- conference location
- Gothenburg, Sweden
- conference dates
- 2016-10-27 - 2016-10-28
- project
- Modelling mechanical properties at nanoscale by molecular dynamics
- language
- English
- LU publication?
- yes
- id
- 6976a312-7b12-4b13-852a-f3a4bb1ceb50
- date added to LUP
- 2016-09-27 13:22:54
- date last changed
- 2019-05-06 13:25:08
@inproceedings{6976a312-7b12-4b13-852a-f3a4bb1ceb50,
abstract = {{Molecular dynamic simulation of nanosized single-crystal copper beams loaded in tension at different strain rates until necking has been performed for two different crystallographic orientations, the [100]- and the [110]-orientations. The molecular dynamics freeware code LAMMPS was employed for the simulations. It was found that, at low enough strain rates, single necking was obtained for both crystallographic orientations and at high enough strain rates both orientations showed necking at both ends. However, the behavior differed between the orientations at intermediate strain rates. For the [100]-<br/>orientation multiple necking zones developed which not occurred for the [110]-orientation. This followed from the different developments of the plasticity in the beams between the orientations.}},
author = {{Ahadi, Aylin and Melin, Solveig}},
booktitle = {{Proceedings to the 29th Nordic Seminar in Computational Mechanics}},
keywords = {{single-crystal copper; Necking; Nanobeams}},
language = {{eng}},
title = {{Necking in single-crystal fcc copper nanobeams}},
url = {{https://lup.lub.lu.se/search/files/63833796/S1_2_d.pdf}},
year = {{2016}},
}