65 citations · 241 across the 19 of their papers we have counts for
5 papers · 1 filter
Controlling Strain Bursts and Avalanches at the Nano-to-Micro Scale
Yinan Cui, Giacomo Po, Nasr Ghoniem
We demonstrate, through 3-dimensional discrete dislocation dynamics simulations, that the com- plex dynamical response of nano and micro crystals to external constraints can be tun…
Comparison of dislocation density tensor fields derived from discrete dislocation dynamics and crystal plasticity simulations of torsion
Reese Jones, Jonathan Zimmerman, Giacomo Po
The importance of accurate simulation of the plastic deformation of ductile metals to the design of structures and components is well-known. Many techniques exist that address the…
A phenomenological dislocation mobility law for bcc metals
Giacomo Po, Yinan Cui, David Rivera +4
Dislocation motion in body centered cubic (bcc) metals displays a number of specific features that result in a strong temperature dependence of the flow stress, and in shear deform…
Formation and interaction mechanisms of dipolar dislocation loops in fcc metals
Can Erel, Giacomo Po, Tamer Crosby +1
Dipolar dislocation loops, prevalent in fcc metals, are widely recognized as controlling many physical aspects of plastic deformation. We present results of 3D dislocation dynamics…
The atomistic representation of first strain-gradient elastic tensors
Nikhil Chandra Admal, Jaime Marian, Giacomo Po
We derive the atomistic representations of the elastic tensors appearing in the linearized theory of first strain-gradient elasticity for an arbitrary multi-lattice. In addition to…