Maximization of buckling load of laminated composite plates with central circular holes using MFD method


TOPAL U. , Uzman U.

STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, cilt.35, ss.131-139, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 35 Konu: 2
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1007/s00158-007-0119-1
  • Dergi Adı: STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
  • Sayfa Sayıları: ss.131-139

Özet

This paper addresses optimal design of simply supported symmetrically laminated composite plates with central circular holes. The design objective is the maximization of the buckling load, and the design variable is considered as the fiber orientation. The first-order shear deformation theory is used for the finite element analysis. The study is complicated because the effects of bending-twisting coupling are also included for the buckling optimization. The modified feasible direction method is used to solve the optimization problems. Finally, the effect of different number of layers, boundary conditions, width-to-thickness ratio, plate aspect ratios, hole daimeter-to-width ratio, and load ratios on the results is investigated.