A number of multiscale modelling approaches are used in our group for underdstanding the mechanics of particulate and continuum materials
Selected Examples:
Molecular Dynamics (MD) Simulations: http://www.spanglefish.com/drsjosephantony/documents/web-md.pdf
Discrete Elememnt Method (DEM): http://www.spanglefish.com/drsjosephantony/documents/dem.pdf
Finite Element Method (DEM): http://www.spanglefish.com/drsjosephantony/documents/web-fem.pdf