Multiscale Modeling for the Analysis of Grain-Scale Fracture Within Aluminum Microstructures | Zendy

E. H. Glaessgen | Zendy; David H. Phillips | Zendy; V. Yamakov | Zendy; Erik Saether | Zendy

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Multiscale Modeling for the Analysis of Grain-Scale Fracture Within Aluminum Microstructures

Author(s) -

E. H. Glaessgen,

David H. Phillips,

V. Yamakov,

Erik Saether

Publication year - 2005

Publication title -

54th aiaa/asme/asce/ahs/asc structures, structural dynamics, and materials conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2005-1851

Subject(s) - materials science , microstructure , fracture (geology) , multiscale modeling , aluminium , scale (ratio) , metallurgy , composite material , physics , chemistry , computational chemistry , quantum mechanics

Multiscale modeling methods for the analysis of metallic microstructures are discussed. Both molecular dynamics and the finite element method are used to analyze crack propagation and stress distribution in a nanoscale aluminum bicrystal model subjected to hydrostatic loading. Quantitative similarity is observed between the results from the two very different analysis methods. A bilinear traction-displacement relationship that may be embedded into cohesive zone finite elements is extracted from the nanoscale molecular dynamics results.

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