THERMAL BUCKLING OF LAMINATED PLATES WITH VARIABLE FIBER VOLUME FRACTION

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2023-1

Author

Mercan, Emrullah

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This study investigates the stability of the graded fiber reinforcement composite plate under temperature-induced loads. The materials that make up the graded fiber reinforcement composite plate are fiber and matrix with different mechanical properties. Graduation is achieved by varying the volume fractions of the components across the thickness. The symmetric and unsymmetric ply sequences in the modeled composite plate are examined separately. Governing equations of motion and boundary conditions are obtained using Hamilton's principle. The displacement equations are obtained using Kirchhoff deformation theory. The system of equations written for the modeled case is solved numerically using the differential quadrature method. In order to validate the examined model, the studies in the literature and the models prepared in Abaqus are compared. Then, critical buckling temperature values for graded fiber reinforcement composite plate exposed to uniform temperature increase are found using MATLAB. According to the results obtained, the graduation in the thickness direction affects the thermal strength of the structure. The expected critical buckling temperature value increases as the plate is graded throughout the thickness.

Subject Keywords

Graded fiber reinforcement composite plate, Kirchhoff plate theory, Differential quadrature method, Critical buckling temperature, Ply orientation

URI

https://hdl.handle.net/11511/102035

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

E. Mercan, “THERMAL BUCKLING OF LAMINATED PLATES WITH VARIABLE FIBER VOLUME FRACTION,” M.S. - Master of Science, Middle East Technical University, 2023.