Evolution of geometrically necessary dislocation density from computational dislocation dynamics Conference Paper

abstract

• This paper presents a method for calculating GND densities in dislocation dynamics simulations. Evolution of suitably defined averages of GND density as well as maps showing the spatial nonuniform distribution of GNDs are analyzed under uniaxial loading. Focus is laid on the resolution dependence of the very notion of GND density, its dependence upon physical dimensions of plastically deformed specimens and its sensitivity to initial conditions. Acknowledgments Support from the National Science Foundation (CMMI-0748187) is gratefully acknowledged. 2009 IOP Publishing Ltd.

authors

• Benzerga, Amine

published proceedings

• DISLOCATIONS 2008

author list (cited authors)

• Guruprasad, P. J., & Benzerga, A. A.

citation count

• 2

complete list of authors

• Guruprasad, PJ||Benzerga, AA

publication date

• July 2009

publisher

• IOP Publishing  Publisher

published in

• IOP Conference Series: Materials Science and Engineering  Journal

keywords

• 34 Chemical Sciences
• 3403 Macromolecular And Materials Chemistry
• 40 Engineering

Digital Object Identifier (DOI)

• 10.1088/1757-899X/3/1/012008

start page

• 012008

end page

• 012008

volume

• 3

issue

• 1

URL

• http://dx.doi.org/10.1088/1757-899x/3/1/012008