Micromechanics

written by Sangryun Lee ( srlee1024@kaist.ac.kr )

The micromechanics is the key theory to connect with multiscale modeling. From

micromechanics we can predict the effective properties of composite system such as elastic

stiffness, electric conductivity, thermal conductivity. However, there are some issues about

the compatibility of micromechanics at nanoscale. In this reason, our objective is to discover

the effect of nanostructure of composites like orientation, aspect ratio, volume fraction of

reinforcements and besides, the anisotropic of matrix and reinforcement will be considered.

The directional properties as well as effective properties of composites may be tunable. Now,

we focus several matrix and reinforcement combination such as spider silk, carbon nanotube,

and nanoparticle. By combining with molecular dynamics simulation, we can simulate

mechanical, electrical, and thermal behavior of nanocomposites. In addition, using

homogenization method from multiscale approach, we can estimate the stress strain curve of

the nanocomposites. These micromechanics based multiscale modeling will be like a guide

line to tuning the effective properties of nanocomposites and find the mechanism of

strengthening.