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Multiscale Modeling of Damage Processes in fcc Aluminum: From Atoms to GrainsMolecular dynamics (MD) methods are opening new opportunities for simulating the fundamental processes of material behavior at the atomistic level. However, current analysis is limited to small domains and increasing the size of the MD domain quickly presents intractable computational demands. A preferred approach to surmount this computational limitation has been to combine continuum mechanics-based modeling procedures, such as the finite element method (FEM), with MD analyses thereby reducing the region of atomic scale refinement. Such multiscale modeling strategies can be divided into two broad classifications: concurrent multiscale methods that directly incorporate an atomistic domain within a continuum domain and sequential multiscale methods that extract an averaged response from the atomistic simulation for later use as a constitutive model in a continuum analysis.
Document ID
20080017063
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Glaessgen, E. H.
(NASA Langley Research Center Hampton, VA, United States)
Saether, E.
(NASA Langley Research Center Hampton, VA, United States)
Yamakov, V.
(National Inst. of Aerospace Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
April 21, 2008
Subject Category
Metals And Metallic Materials
Meeting Information
Meeting: 11th Joint NASA/FAA/DoD Conference on Aging Aircraft
Location: Phoenix, AZ
Country: United States
Start Date: April 21, 2008
End Date: April 24, 2008
Sponsors: Federal Aviation Administration, Department of Defense, NASA Headquarters
Funding Number(s)
CONTRACT_GRANT: NCC1-02043
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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