Article ID Journal Published Year Pages File Type
797383 Journal of the Mechanics and Physics of Solids 2009 11 Pages PDF
Abstract

The plastic behavior of micro- and nano-scale crystalline pillars is investigated under nominally uniform compression. The transition from forest hardening to exhaustion hardening dominated behavior is shown to emerge from discrete dislocation dynamics simulations upon reduction in the initial source density. The analyses provide new insight into the scaling of flow stress with specimen size and also highlight the connection between individual dislocation mechanisms, collective phenomena and overall behavior.

Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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