REGISTRATION OF ANIZOTROPY UNDER THE FLAT DEFORMATION OF SHEET MATERIALS
The article studies the spreading of plastic zone near the round hole in an endless plate of transversal-isotropic material. The hole is loaded with spinning boosters. We deal with two cases of loading of normal boosters: along the internal border of plane or on endlessness. The fluidity condition for transversal-isotropic material is linearised by the small parameter method, which characterizes the material anisotropy.