Two simple and efficient displacement‐based quadrilateral elements for the analysis of composite laminated plates
作者： Y. X. Zhang , K. S. Kim
DOI: 10.1002/NME.1123
关键词:
摘要: Two simple 4-node 20-DOF and 24-DOF displacement-based quadrilateral elements named RDKQ-L20 RDKQ-L24 are developed in this paper based on the first-order shear deformation theory (FSDT) for linear analysis of thin to moderately thick laminates. The deflection rotation functions element sides obtained from Timoshenko's laminated composite beam functions. Linear displacement interpolation standard isoparametric plane a with drilling degrees freedom taken as in-plane displacements proposed RDKQ-L24, respectively. Due application functions, convergence can be ensured theoretically very formulation, shear-locking free extremely laminates even full integration. A hybrid-enhanced procedure is employed improve accuracy stress analysis, especially transverse stresses. Numerical tests show that new convergent, not sensitive mesh distortion, accurate efficient Copyright © 2004 John Wiley & Sons, Ltd.
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