Models of the shells having ribs, reinforcement plates and cutouts

Plates and Shells

Plates and shells represent principal elements of aerospace structures, including fuselages of planes and missiles, control surfaces, bulkheads, helicopter blades, and others. The multiple applications, shapes, and materials found in plate and shell structures dictate the necessity of a comprehensive approach to their analysis reflected in relevant theories and methodologies. Various aspects of...

Chapter 8 Plates and Shells: Asymptotic Expansions and Hierarchic Models

Plates and Shells: Asymptotic Expansions and Hierarchic Models

Concerning thin structures, such as plates and shells, the idea of reducing the equations of elasticity to two-dimensional models defined on the midsurface seems relevant. Such a reduction was first performed thanks to kinematicalhypotheses about the transformation of normal lines to the midsurface. As nowadays, the asymptotic expansion of thedisplacement solution of the three-dimen...

Plates and shells: Asymptotic expansions and hierarchical models

Concerning thin structures such as plates and shells, the idea of reducing the equations of elasticity to twodimensional models defined on the mid-surface seems relevant. Such a reduction was first performed thanks to kinematical hypotheses about the transformation of normal lines to the mid-surface. As nowadays, the asymptotic expansion of the displacement solution of the three-dimensional lin...

Design Considerations for Symmetrically Laminated Plates with Cutouts

Earlier [I], it was shown that certain reinforced holes may be designed for elastic, isotropic plane sheets that do not alter the stress state in the cut sheet, for particular types of planar loading. In this work, this methodology is extended to symmetrically laminated composite plates which are under planar loading, and additionally pure bending moments. Since these two types of loading lead ...