3D FEM Analysis of Buckling Delamination of a Piezoelectric Sandwich Rectangular Plate with Interface Edge Cracks
| Autor: | Surkhay Akbarov, Fatih Aylikci, Nazmiye Yahnioglu |
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| Rok vydání: | 2020 |
| Předmět: |
Normal force
Materials science Polymers and Plastics business.industry General Mathematics Delamination 02 engineering and technology Structural engineering Edge (geometry) 021001 nanoscience & nanotechnology Condensed Matter Physics Piezoelectricity Finite element method Biomaterials 020303 mechanical engineering & transports 0203 mechanical engineering Buckling Mechanics of Materials Solid mechanics Ceramics and Composites Piecewise Composite material 0210 nano-technology business |
| Zdroj: | Mechanics of Composite Materials. 55:797-810 |
| ISSN: | 1573-8922 0191-5665 |
| DOI: | 10.1007/s11029-020-09851-z |
| Popis: | The problem of local buckling delamination around interface edge cracks in a sandwich PZT/Metal/PZT rectangular thick plate is studied within the scope of the 3D linearized buckling instability theory. Crack faces have an insignificant initial imperfection, and the plate is compressed by uniformly distributed normal forces acting on two opposite ends of the plate. The evolution of the initial imperfection is investigated, and the critical buckling forces for the plate are found. A mathematical modeling of the problem considered is performed using the 3D exact geometrically nonlinear electroelasticity theory within the framework of a piecewise homogeneous body model. The corresponding boundary-value problems are solved numerically by employing a 3D finiteelement method. Numerical results for the critical forces and the effect problem parameters on these forces are presented and discussed. |
| Databáze: | OpenAIRE |
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