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An analysis of the quasicontinuum method

Knapp, J. and Ortiz, M. (2001) An analysis of the quasicontinuum method. Journal of the Mechanics and Physics of Solids, 49 (9). pp. 1899-1923. ISSN 0022-5096.

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The aim of this paper is to present a streamlined and fully three-dimensional version of the quasicontinuum (QC) theory of Tadmor et al. (Philos. Mag. A 73 (1996) 1529; Langmuir 12 (1996) 4529) and to analyze its accuracy and convergence characteristics. Specifically, we assess the effect of the summation rules on accuracy; we determine the rate of convergence of the method in the presence of strong singularities, such as point loads; and we assess the effect of the refinement tolerance, which controls the rate at which new nodes are inserted in the model, on the development of dislocation microstructures.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Ortiz, M.0000-0001-5877-4824
Additional Information:© 2001 Elsevier. The support of the Department of Energy through Caltech's ASCI/ASAP Center for the Simulation of the Dynamic Behavior of Solids is gratefully acknowledged.
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:A. Quasicontinuum; B. Error analysis; C. Nanoindentation; D. Atomistic models
Issue or Number:9
Record Number:CaltechAUTHORS:20171212-152307212
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Official Citation:J. Knap, M. Ortiz, An analysis of the quasicontinuum method, In Journal of the Mechanics and Physics of Solids, Volume 49, Issue 9, 2001, Pages 1899-1923, ISSN 0022-5096, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83844
Deposited By: Lydia Suarez
Deposited On:19 Dec 2017 22:39
Last Modified:24 Feb 2020 10:30

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