Large scale atomistic simulation of size effects in micropillars
29 Nov 2016 | Presentations | Contributor(s): Mohammadreza Yaghoobi, George Voyiadjis
The present paper studies the size effects during the micropillar compression test in Ni thin films using large scale atomistic simulation. Different micropillar sizes are simulated to investigate...
Role of grain boundary on the sources of size effects
29 Nov 2016 | Presentations | Contributor(s): George Voyiadjis, Mohammadreza Yaghoobi
The present work investigates the effects of grain boundary (GB) on the sources of size effects. Up to now, several studies have been conducted to address the role of GBs in size effects from the...
Strain gradient plasticity for incremental and non-incremental theories under non-proportional loading
29 Nov 2016 | Presentations | Contributor(s): George Voyiadjis, Yooseob Song
A thermodynamically consistent coupled framework of higher-order strain gradient plasticity theory is developed based on the formulations of the incremental and non-incremental theory respectively...