Indentation of thin copper film using molecular dynamics and peridynamics
(2016) In Procedia Structural Integrity 2. p.1343-1350- Abstract
- In this study we investigate the efficiency of peridynamics to reproduce results from molecular dynamic simulations of nanoindentation of thin single-crystal fcc copper layers by calibration of material parameters in the peridynamic model. The free-ware LAMMPS supports both molecular dynamic and peridynamics approaches, and has been used as the common framework. Nanoindentation response for two different crystallographic orientations has been simulated using both numerical approaches and the force-displacement curves from the simulations have been compared between the different approaches. The conclusion is that proper chose of the peridynamic material parameters results in proper reproduction of the molecular dynamic results for the... (More)
- In this study we investigate the efficiency of peridynamics to reproduce results from molecular dynamic simulations of nanoindentation of thin single-crystal fcc copper layers by calibration of material parameters in the peridynamic model. The free-ware LAMMPS supports both molecular dynamic and peridynamics approaches, and has been used as the common framework. Nanoindentation response for two different crystallographic orientations has been simulated using both numerical approaches and the force-displacement curves from the simulations have been compared between the different approaches. The conclusion is that proper chose of the peridynamic material parameters results in proper reproduction of the molecular dynamic results for the nanoindentationtest. This opens for peridynamic simulations of geometrically more complicated structures to a much lower computational cost, retaining the mechanical response from the atomic scale. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4679169b-929d-44cf-b9d6-8a0e2ce2cb5a
- author
- Ahadi, Aylin LU ; Hansson, Per LU and Melin, Solveig LU
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Nano indentation, peridynamics, thin films, Molecular Dynamics
- in
- Procedia Structural Integrity
- volume
- 2
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85063028732
- ISSN
- 2452-3216
- DOI
- 10.1016/j.prostr.2016.06.171
- project
- Peridynamic modeling of materials
- language
- English
- LU publication?
- yes
- id
- 4679169b-929d-44cf-b9d6-8a0e2ce2cb5a
- date added to LUP
- 2019-03-29 11:21:04
- date last changed
- 2022-04-25 22:24:44
@article{4679169b-929d-44cf-b9d6-8a0e2ce2cb5a, abstract = {{In this study we investigate the efficiency of peridynamics to reproduce results from molecular dynamic simulations of nanoindentation of thin single-crystal fcc copper layers by calibration of material parameters in the peridynamic model. The free-ware LAMMPS supports both molecular dynamic and peridynamics approaches, and has been used as the common framework. Nanoindentation response for two different crystallographic orientations has been simulated using both numerical approaches and the force-displacement curves from the simulations have been compared between the different approaches. The conclusion is that proper chose of the peridynamic material parameters results in proper reproduction of the molecular dynamic results for the nanoindentationtest. This opens for peridynamic simulations of geometrically more complicated structures to a much lower computational cost, retaining the mechanical response from the atomic scale.}}, author = {{Ahadi, Aylin and Hansson, Per and Melin, Solveig}}, issn = {{2452-3216}}, keywords = {{Nano indentation; peridynamics; thin films; Molecular Dynamics}}, language = {{eng}}, pages = {{1343--1350}}, publisher = {{Elsevier}}, series = {{Procedia Structural Integrity}}, title = {{Indentation of thin copper film using molecular dynamics and peridynamics}}, url = {{http://dx.doi.org/10.1016/j.prostr.2016.06.171}}, doi = {{10.1016/j.prostr.2016.06.171}}, volume = {{2}}, year = {{2016}}, }