Weight Efficiency of Anisogrid Circular Cylindrical Shells in Transverse Bending

The research results are obtained on the basis of a technique implementing the finite element method for solving the problems of strength and stability of reinforced cylindrical shells made of the composite material, taking into account the momentness and nonlinearity of their subcritical stress-strain state. The stability of an anisogrid circular cylindrical shell made of a composite material under transverse bending is investigated. The effect of deformation nonlinearity, reinforcing set stiffness, the angles of laying the reinforcement on critical loads of shell buckling and weight efficiency of applying the composite materials, is determined.