Transient analysis of laminated composite plates using nurbs-based finite elements
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lieuntb@hcmute.edu.vnKeywords:
Transient analysis, laminated composite plate, isogeometric analysis, NURBS, Newmark integrationAbstract
The isogeometric analysis (IGA) that integrates Computer Aided Design (CAD) and Computer Aided Engineering (CAE) is found so far the effectively numerical tool for the analysis of a variety of practical problems. This paper is further extended NURBS-based isogeometric approach for response analysis of laminated composite plates using the higher-order shear deformation theory. The present theory is derived from the classical plate theory (CPT) and the shear stress free surface conditions are naturally satisfied. Therefore, shear correction factors are not required. Galerkin weak form of response analysis model for laminated composite plate is used to obtain the discrete system of equations. It can be solved by NURBS-based isogeometric analysis. Some numerical examples of the laminated composite plates under various dynamic loads, fiber orientations and lay-up numbers are presented. The accuracy and reliability of the proposed method is verified by comparing with analytical, numerical solutions and Ansys software.
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