Wave Propagation in Rocks Modeled as Reduced Cosserat Continuum

P098 WAVE PROPAGATION IN ROCKS MODELED AS REDUCED COSSERAT CONTINUUM Abstract ELENA F. GREKOVA 1 and GÉRARD C.HERMAN 2 1 Institute for Problems in Mechanical Engineering of Russian Academy of Sciences St. Petersburg Russia 2 Shell International E & P and Delft University The Netherlands Rock is a complex material demonstrating such interesting properties of wave propagation as attenuation and frequency dependence. From this frequency dependence important microscale properties of the rock can be obtained with the aid of an appropriate wave propagation model. Well established effective medium methods do not address this frequency dependence. We discuss a half Cosserat