The influence of the structure of the medium upon crack propagation in a Finsler space was examined within the context of fracture theory. The structure of the medium was taken into account via the connectivity coefficient of the Finsler space and its metric. The deformation of the fibered space caused by the crack motion was analyzed.Influence of the Defect Structure of the Material on Fracture and Crack Motion. I.A.Miklashevich: Russian Physics Journal, 2002, 45[12], 1165-9