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Quadrangular Nine-Node Superelement for Solving Problems in Statics, Dynamics and Stability of Multilayer Plates

Authors: Popov B.G., Baslyk K.P., Kvaratskhelia I.N. Published: 16.11.2014
Published in issue: #4(49)/2002  

DOI:

 
Category: Dynamics, Strength, Reliability  
Keywords:

A problem of construction of the quadrangular superelement of a flat multilayer plate on the basis of the triangular six-node finite element of a mixed type with 30 degree-of-freedom is considered. Kinematic and deformation relations are derived with the adoption of Timoshenko’s hypotheses. A technique to construct reduced matrices of the superelement mass and stability by means of introducing approximation functions immediately on the quadrangle is suggested.