Approach
The NANOMESO research effort consists of 6 activities as shown in the diagram below. Each activity has a US and an EU participant. These activities are summarized as follows:KnowledgeBase (KB):
Ab-Initio (AI):This central activity integrates the computational and experimental scales within the other activities and provides a central resource with which to exchange data with the scientific and engineering communities.
Atomistics (AT):This activity addresses the smallest lengths scales and provides fundamental energetics of highly stressed systems, in the form of planar fault energies.
Peierls Methods (PM):This activity takes input from the AI effort and provides barrier strengths and activation energies associated with cross slip, dislocation nucleation from free surfaces and boundaries, and barrier strengths to dislocation transmission across boundaries.
Dislocation Dynamics (DD):This activity takes input from both the AI and AT efforts to generalize the specific barrier strength studies conducted by the AT effort.
Experimental Validation (EV):This activity incorporates activation energies from AT, barrier strengths from PM, and dislocation line energies from AT and PM to provide estimates of the deformation structure and constitutive behavior of single and bi-crystal samples of deformed gold pillar specimens, polycrystals of copper, nickel, and aluminum with sub-micron grains, and multilayer thin films.
This activity provides experimental information about deformation structure and constitutive behavior, for comparison to output from the DD activity.