Discrete dislocation plasticity analysis of size effects in single crystals

V. S. Deshpande*, A. Needleman, E. Van Der Giessen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The effect of size and slip system configuration on the tensile stress-strain response of micron-sized planar crystals as obtained from discrete dislocation plasticity simulations is presented. The crystals are oriented for either single or symmetric double slip. With the rotation of the tensile axis unconstrained, there is a strong size dependence, with the flow strength increasing with decreasing specimen size. Below a certain specimen size, the flow strength of the crystals is set by the nucleation strength of the initially present Frank-Read sources. The main features of the size dependence are the same for both the single and symmetric double slip configurations.

Original languageEnglish
Title of host publicationComputational Plasticity
Subtitle of host publicationFundamentals and Applications - Proceedings of the 8th International Conference on Computational Plasticity, COMPLAS VIII
PublisherElsevier
Pages1181-1184
Number of pages4
EditionPART 2
ISBN (Print)849599979X, 9788495999795
Publication statusPublished - 2005
Event8th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS VIII - Barcelona, Spain
Duration: 5-Sept-20057-Sept-2005

Publication series

NameComputational Plasticity: Fundamentals and Applications - Proceedings of the 8th International Conference on Computational Plasticity, COMPLAS VIII
NumberPART 2

Conference

Conference8th International Conference on Computational Plasticity: Fundamentals and Applications, COMPLAS VIII
Country/TerritorySpain
CityBarcelona
Period05/09/200507/09/2005

Keywords

  • Dislocations
  • Plasticity
  • Size effects

Fingerprint

Dive into the research topics of 'Discrete dislocation plasticity analysis of size effects in single crystals'. Together they form a unique fingerprint.

Cite this