U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Multi-Scale Discrete Dislocation Plasticity Analysis: Application to Nano-indentation

Published

Author(s)

S M. Khan, Lyle E. Levine

Abstract

To closely analyze the dislocation structure evolution during nano-indentation, a multi-scale discrete dislocation plasticity code is modified to include nano-indentation loading. This code couples two length scales, discrete dislocation dynamics and continuum finite element and has been successfully applied to analyze various problems in mechanics and materials science. Description of the multi-scale code is presented followed by the methodology to implement nano-indentation loading in the model. The numerical accuracy of the new model is investigated and shown to be excellent for small contact area between indenter tip and the specimen. Representation results are shown for dislocation structure evolution during nano-indentation.
Proceedings Title
NSTI NanoTech 2006 Conference | | | NSTI
Conference Dates
May 7-11, 2006
Conference Location
Undefined
Conference Title
NSTI Nanotechnology Conference Proceedings
Pub Type
Conferences

Keywords

dislocation dynamics, dislocation structure, multi-scale, nano-indentation, plasticity

Citation

Khan, S. and Levine, L. (2008), Multi-Scale Discrete Dislocation Plasticity Analysis: Application to Nano-indentation, NSTI NanoTech 2006 Conference | | | NSTI, Undefined (Accessed May 4, 2024)

Created October 16, 2008