Structural Engineering and Mechanics

Volume 8, Number 1, 1999, pages 19-26

DOI: 10.12989/sem.1999.8.1.019

Eight-node field-consistent hexahedron element in dynamic problems

Rajendran S, Prathap G

Abstract

Superior performance of field consistent eight-node hexahedron element in static bending problems has already been demonstrated in literature. In this paper, its performance in free vibration is investigated. Free vibration frequencies of typical test problems have been computed using this element. The results establish its superior performance in free vibration, particularly in thin plate application and near incompressibility regimes, demonstrating that shear locking, Poisson\'s stiffening and volumetric locking have been eliminated.

Key Words

field consistent element, eight-node hexahedron element, free vibration, shear locking, bubble functions

Address

Rajendran S, Mat Technol Applicat Ctr, Singapore Prod & Stand Board, Sci Pk Dr, Singapore 118221, Singapore<br />Natl Aerosp Labs, Struct Div, Bangalore 560017, Karnataka, India