BUCKLING DELAMINATION OF THE RECTANGULAR ORTHOTROPIC THICK PLATE WITH AN EDGE RECTANGULAR CRACK


Akbarov S. , Yahnioglu N., Karatas E. E.

10th ASME Biennial Conference on Engineering Systems Design and Analysis, İstanbul, Türkiye, 12 - 24 Temmuz 2010, ss.193-200 identifier identifier

  • Doi Numarası: 10.1115/esda2010-24705
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.193-200

Özet

The buckling delamination problem for the rectangular plate made from composite (orthotropic) material is studied. It is supposed that the plate has a rectangular edge-crack and edge-surfaces of that have an initial infinitesimal imperfection. The development of this initial imperfection with an external compressive loading acting along the crack is studied in the framework of the three-dimensional geometrically nonlinear field equations of the elasticity theory of anisotropic bodies. For the determination of the values of the critical force the initial imperfection criterion is used. The corresponding boundary-value problems are solved by employing the boundary form perturbation techniques and the FEM. The influence of the material or geometrical parameters of the plate on the values of critical force is discussed.