The mode of the buckling delamination of the PZT/Metal/PZT sandwich rectangular plate with interface embedded rectangular cracks


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Aylıkcı F. , Yahnioğlu N. , Akbarov S.

7th ECCOMAS Thematic Conference on the Mechanical Response of Composites (COMPOSITES 2019), Girona, İspanya, 18 - 20 Eylül 2019, cilt.1, sa.1, ss.13-22

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Girona
  • Basıldığı Ülke: İspanya
  • Sayfa Sayıları: ss.13-22

Özet

In this study it is considered the buckling delamination problems of a PZT/Metal/PZT rectangular thick plate with interface embedded cracks. Under uniformly distributed uniaxial compressive static forces on two end planes, cracks contained by the plate is going to open and in a certain value of this forces buckling delamination of the plate occur. In the practical application owing to some values of geometrical and material parameters, different buckling delamination mode or surface wrinkles of the plate can be seen [8-10]. Our aim is to determine the buckling delamination modes of the considered plate as well as to determine the effect of geometrical and material parameters of these surface wrinkles. Theoretical investigations are made within the scope of the 3D linearized theory of stability loss with utilizing the piecewise homogeneous body model using the electro-elasticity theory [1,4,5]. It is supposed that there is an interface embedded crack between the face and core layers and this plate is loaded with the uniformly-distributed compressive forces acting on two opposite end planes. Considering some boundary conditions mathematical modeling of the considered problems are made and solution to these boundary-value problems are made numerically using 3D FEM coded by the authors. Buckling delamination mode of the considered PZT sandwich plate and the effect of the problem parameters on this buckling mode are analyzed and tried to clarify.