Rhombic Laminates with Mass Variations under Dual-Axis Compression
Publication: Journal of Aerospace Engineering
Volume 33, Issue 3
Abstract
Biaxial buckling of the laminated composite rhombic (skew) plate with mass variations in the form of openings and adding extra mass at the center of the plate was studied using improved shear deformation theory (ISDT). The ISDT mathematical model incorporates third-degree variation of the thickness coordinate in the displacement formulation. In the presented theory, the use of shear correction factor was eliminated and a second-order variation of transverse shear strains through the plate thickness was implied. A computer-based algorithm based on the finite-element formulation of the mathematical model was developed to analyze the buckling behavior of a laminated composite skew plate with openings and extra mass imposed at the center of the plate. Due to a lack of results in the literature based on the ISDT of the considered problem of biaxial buckling of laminated composite skew plates with openings cutout and extra mass imposed at the center of plate, the present results were validated with the suitable results available for laminated composite plates without openings/extra mass imposed at the center of plate with zero skew angle. The new results were obtained by varying the geometry, boundary conditions, ply orientations, and skew angles.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are available from the corresponding author by request, including the finite-element formulation and the mathematical formulation.
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Published In
Journal of Aerospace Engineering
Volume 33 • Issue 3 • May 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Jun 7, 2018
Accepted: Oct 15, 2019
Published online: Mar 10, 2020
Published in print: May 1, 2020
Discussion open until: Aug 10, 2020
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