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Mixed Atomistic-Continuum Models of Material Behavior: The Art of Transcending Atomistics and Informing Continua

Ortiz, M. and Cuitiño, A. M. and Knap, J. and Koslowski, M. (2001) Mixed Atomistic-Continuum Models of Material Behavior: The Art of Transcending Atomistics and Informing Continua. ASCI Technical Report, ASCI-TR141. . (Unpublished)

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The recent development of microscopes that allow for the examination of defects at the atomic scale has made possible a more direct connection between the defects and the macroscopic response they engender (see, e. g., MRS Bulletin, December 1999). Techniques ranging from high-resolution electron microscopy, which make possible the determination of the atomic-level structure of dislocation cores and grain boundaries, to the atomic force microscopes that bring new meaning to experiments such as those based on nanoindentation, all pose deep challenges as regards the modeling of the mechanics of materials. Each of these experiments calls for renewed efforts to cement the connection between defect mechanics and macroscopic constitutive descriptions. However, the link between the defects themselves and the observed macroscopic behavior is often a difficult one to forge theoretically and remains an active area of research.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription ItemJournal Article
Ortiz, M.0000-0001-5877-4824
Cuitiño, A. M.0000-0002-5180-9147
Koslowski, M.0000-0001-9650-2168
Additional Information:The support of the U.S. Department of Energy through California Institute of Technology's ASCII ASAP Center for the Simulation of the Dynamic Response of Materials is gratefully acknowledged.
Group:Accelerated Strategic Computing Initiative, GALCIT
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Series Name:ASCI Technical Report
Issue or Number:ASCI-TR141
Record Number:CaltechAUTHORS:20230210-231405683
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:119216
Deposited By: George Porter
Deposited On:11 Feb 2023 02:43
Last Modified:11 Feb 2023 02:43

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