Anisotropy directionality of glass-fibre plastic on roving and its influence on constructive decisions of glass-fibre plastic tewels and sunken vessels

The anisotropy degree of mechanical properties of materials of glass-fibre plastic constructions, made by winding with using roving, and the temperature dependence of its elasticity module are analyzed; recommendations on quality normalization are given. It is determined that deterioration of characteristics of glass-fibre plastic in the line of generating in comparison with textile reinforcement does not increase the wall thickness of sunken vessels. The temperature increase appreciably reduces elasticity module of glass-fibre plastic wounded by roving, especially in the line of generation that should be taken into account while designing tewels.