Open Access Open Access  Restricted Access Subscription Access

Plasticity in Confined Volumes

H. ZBIB

Abstract


Plastic deformation in small volumes whose dimensions fall in the range of micrometer and nanometer length scales can be very different from that in the bulk. Large surface (or interface) to volume ratio imposes limitations on dislocation generation and motion, leading to increase in strength and alterations in deformation behavior. We have investigated three such cases, namely, composites nanowires, nanoscale multi-layer metallic composites, and micropillar single crystals, using either molecular dynamics or dislocation dynamics simulations or both. The results of these investigations are summarized as follows.

Full Text:

PDF