His key areas of expertise include mechanical engineering, materials engineering, and materials physics. Markus carries out research about the mechanical behavior of complex fluids and solids, using nonequilibrium thermodynamics, statistical mechanics, multiscale modeling, and coarse graining. The group’s recent projects are concerned with e.g. anisotropic viscoplastic deformation and microstructure-based modeling of the intrinsic kinectics of aging and deformation of polymer glasses. More generally, the research topics cover structure-property relations, elasto-viscoplasticity of solids, damage mechanics, deformation-induced phase transitions, and kinetic theories for complex fluids and solids.