Optimal design of plates for shear buckling

✍ Scribed by R. Levy; V. Sokolinsky

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 746 KB
• Volume: 63
• Category: Article
• ISSN: 0045-7949
• DOI: 10.1016/s0045-7949(96)00063-6

✦ Synopsis

This paper is concerned with the structural optimization problem of maximizing the shear buckling load of rectangular plates for a given volume of material. Optimality conditions are first derived via variational calculus, and a double cosine thickness varying plate and a hybrid double sine thickness varying plate are then fine tuned in a one parameter optimization search using a home coded prog.ram for an analysis that utilizes the Rayleigh-Ritz method until convergence. Results indicate an increase of 33% in capacity for an orthotropic plate having 50% of the fibers in the 0" direction and the other 50% in the 90" direction.