Models of the shells having ribs, reinforcement plates and cutouts

作者：Karpov V V^*

来源：International Journal of Solids and Structures, 2018, 146: 117-135.

DOI：10.1016/j.ijsolstr.2018.03.024

• Shells of a stepped variable thickness
• Mathematical model
• Supported shells
• Shells with cutouts
• Boundary conditions
• Structural anisotropy method

The work considers shells of a stepped variable thickness when a thickness variation is set by means of unit bar graph functions equal to a difference of two unit functions. It enables for considering ribs, reinforcement plates and cutouts in one structure; a rib and shell contact is arranged along a strip. It is shown on the basis of the variational procedure for derivation of equilibrium equations that the boundary conditions (free boundary) are fulfilled automatically at the lateral surface of ribs and boundary of the cutouts when solving boundary-value problems.

• 出版日期2018-8-1