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Microstructure Evolution during Nanoindentation by the Quasicontinuum Method
Author(s) -
Amelang Jeffrey S.,
Venturini Gabriela N.,
Kochmann Dennis M.
Publication year - 2013
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201310263
Subject(s) - nanoindentation , microstructure , materials science , length scale , bridging (networking) , lattice (music) , statistical physics , nanotechnology , composite material , mechanics , physics , computer science , computer network , acoustics
A new energy‐based quasicontinuum formulation is presented which is based on sampling the crystal energy at carefully‐chosen lattice sites and which allows for efficiently bridging from the atomistic to the continuum length scale. The presented technique is applied to experiments of nanoindentation whose microstructure‐induced size effects can now be studied with full atomistic detail at the micrometer scale without the necessity of phenomenological material models. (© 2013 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)