THEORY OF CYLINDRICAL-SHELLS OF ANISOTROPIC MATERIALS OF DIFFERENT MODULI

Experimental investigations of the elastic deformation of different composites of granular and fibrous configuration disclose their noticeable difference in moduli and anisotropy. For instance, the elastic modulus of a carbon plastic in the warp direction is 30% lower under compression than in the weft fiber direction. This index in the warp direction is more than double in compression than its value in tension. Physical equations to describe anisotropic material of different moduli are proposed in this paper, and the formulation, methodology, and results of the numrical solution of boundary value problems of cylindrical shell theory are elucidated on their basis. Refs.