Published March 10, 2006
| Version Published
Journal Article
Open
Multiparadigm modeling of dynamical crack propagation in silicon using a reactive force field
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1.
Massachusetts Institute of Technology
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2.
California Institute of Technology
Abstract
We report a study of dynamic cracking in a silicon single crystal in which the ReaxFF reactive force field is used for several thousand atoms near the crack tip, while more than 100 000 atoms are described with a nonreactive force field. ReaxFF is completely derived from quantum mechanical calculations of simple silicon systems without any empirical parameters. Our results reproduce experimental observations of fracture in silicon including changes in crack dynamics for different crack orientations.
Additional Information
© 2006 The American Physical Society. Received 17 August 2005; published 10 March 2006. The CMDF development was supported by DARPA and completed with funding from DARPA PROM (C. Schwartz and S. Wax) with support from the Caltech DOE-ASC program. The facilities were supported by DURIP-ONR/ARO. Development of ReaxFF was supported by NSF-ITR (DMR-0427177) and DARPA-ONR (J. Goldwasser). Approved for Public Release, Distr. Unltd. (DARPA Distr. Stat. "A").Attached Files
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Additional details
Identifiers
- Eprint ID
- 3775
- Resolver ID
- CaltechAUTHORS:BUEprl06
Funding
- Defense Advanced Research Projects Agency (DARPA)
- Department of Energy (DOE)
- Office of Naval Research (ONR)
- Army Research Office (ARO)
- NSF
- DMR-0427177
Dates
- Created
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2006-07-10Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field