Multi-Scale Investigation on Interfacial Behavior of Nanoscale Systems
Abstract
This research is a concerted team effort to investigate the multiscale behavior of materials systems made of nano-materials or nano/bulk-materials. The fundamental understanding of multiscale behavior is the key to the utilization of nano-materials and to the design of material systems contained nano-materials. The research program represents a synergistic effort to investigate different aspects of multiscale phenomena using the computational approaches by a team composed of researchers from AFRL-ML, NCCU of Taiwan and US universities. Mixed atomistic and continuum methods offer the possibility of carrying out simulations of material properties at both larger length scales and longer times than direct atomistic calculations. The proposed innovative algorithm links atomistic and continuum models through the device of the finite element method which permits a reduction of the full set of atomistic degrees of freedom. This research gives a full description of the proposed innovative algorithm with special reference to the ways in which the method may be used to model crystals with more than a single grain. In this project, we have developed the innovative algorithms in the area of nanomechanics. These approaches were used to studies the nanoindentation size effect, mechanical properties of nanotubes, the effect of adsorbed layers on the mechanical properties of thin films, and the asperity contact at nano-scale interfaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 19, 2010
- Accession Number
- ADA516626
Entities
People
- John Maguire
- Tay-tang Earn
- Yeau-Ren Jeng
Organizations
- National Chung Cheng University