Effects of Elastic Foundations on Flexural Response of Shear Deformable Laminated Plates Subjected to Transverse Uniform Lateral Pressure Uncertain System Environment and Hygrothermomechanical Loading

A non-linear bending analysis is presented for a simply supported shear deformable composite laminated plate subjected to a combined uniform lateral pressure and thermal loading and resting on a two-parameter (Pasternak-type) elastic foundation. The formulations are based on Reddy's higher-order shear deformation plate theory, including the plate-foundation interaction and thermal effects. The analysis uses a mixed Galerkin-perturbation technique to determine the load-deflection curves and load-bending moment curves. Numerical examples are presented that relate to the performances of antisymmetric angleply and symmetric cross-ply laminated plates subjected to thermomechanical loading and resting on two-parameter elastic foundations from which results for Winkler elastic foundations are obtained as a limiting case. The influences due to a number of effects e.g. foundation stiffness, plate aspect ratio, total number of plies, fibre orientation and initial thermal bending stress, are studied. Typical results are presented in a dimensionless graphical form.

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Thermal Postbuckling of Imperfect Shear-Deformable Laminated Plates on Two-Parameter Elastic Foundations

Mechanics of Advanced Materials and Structures ◽

10.1080/107594199305539 ◽

1999 ◽

Vol 6 (3) ◽

pp. 207-228 ◽

Cited By ~ 23

Author(s):

Hui-Shen Shen

Keyword(s):

Laminated Plates ◽

Elastic Foundations ◽

Thermal Postbuckling ◽

Shear Deformable ◽

Two Parameter

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Postbuckling of composite laminated plates under biaxial compression combined with lateral pressure and resting on elastic foundations

The Journal of Strain Analysis for Engineering Design ◽

10.1243/0309324981512977 ◽

1998 ◽

Vol 33 (4) ◽

pp. 253-261 ◽

Cited By ~ 6

Author(s):

H-S Shen

Keyword(s):

Lateral Pressure ◽

Plate Theory ◽

Perturbation Technique ◽

Laminated Plates ◽

Combined Loading ◽

Graphical Form ◽

Biaxial Compression ◽

Elastic Foundations ◽

Plate Aspect Ratio ◽

Limiting Case

A postbuckling analysis is presented for a simply supported, composite laminated rectangular plate subjected to biaxial compression combined with lateral pressure and resting on a two-parameter (Pasternak-type) elastic foundation. The initial geometrical imperfection of the plate is taken into account. The formulations are based on the classical laminated plate theory, including plate-foundation interaction. The analysis uses a perturbation technique to determine the buckling loads and postbuckling equilibrium paths. Numerical examples are presented that relate to the performances of antisymmetric angle-ply and symmetric cross-ply laminated plates subjected to combined loading and resting on Pasternak-type elastic foundations from which results for Winkler elastic foundations are obtained as a limiting case. The influence played by a number of effects, among them foundation stiffness, the plate aspect ratio, the total number of plies, fibre orientation and initial lateral pressure, is studied. Typical results are presented in dimensionless graphical form.

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