Engineering Computations: Volume 10 Issue 3

A HIGHLY EFFICIENT ITERATIVE PARALLEL COMPUTATIONAL METHOD FOR FINITE ELEMENT SYSTEMS

K.P. WANG, J.C. JR. BRUCH

A fully parallel algorithm for the solution of a finite element system using a MIMD (multiple‐instruction multiple‐data architecture) parallel computer is presented. The…

FINITE ELEMENT MODELLING OF THE TENSILE STRAIN SOFTENING BEHAVIOUR OF PLAIN CONCRETE STRUCTURES

SUDIP S. BHATTACHARJEE, PIERRE LÉGER

The localized strain softening behaviour of concrete has been modelled by two approaches: (i) the stiffness degrading model based on the total stress‐strain constitutive…

MIXED STRAIN ELEMENTS FOR NON‐LINEAR ANALYSIS

XIKUI LI, A.J.L. CROOK, L.P.R. LYONS

The mixed assumed strain approach proposed by Simo and Rifai is used to derive three 8‐noded hexahedral mixed strain elements. The approach is also generalized to geometrically…

NEW ERROR ESTIMATION FOR C° EIGENPROBLEMS IN FINITE ELEMENT ANALYSIS

JACOB AVRASHI, ROBERT D. COOK

This paper presents a new approach for estimating the discretization error of finite element analysis of generalized eigenproblems. The method uses smoothed gradients at nodal…

AN ALGORITHM FOR PROFILE AND WAVEFRONT REDUCTION OF SPARSE MATRICES WITH A SYMMETRIC STRUCTURE

S.R.P. MEDEIROS, P.M. PIMENTA, P. GOLDENBERG

A new algorithm for reducing the profile and root‐mean‐square wavefront of sparse matrices with a symmetric structure is presented. Our numerical experiments show an overall…

AUTOMATING FINITE ELEMENT DEVELOPMENT USING OBJECT ORIENTED TECHNIQUES

BENNY RAPHAEL, C.S. KRISHNAMOORTHY

An object oriented finite element model is presented. The main advantage of this model over conventional systems is that, the additional code required for adding elements to the…

SOME STUDIES ON FREE VIBRATION ANALYSIS OF CYCLIC SYMMETRIC STRUCTURES USING SUBSPACE METHOD

P. BALASUBRAMANIAN, J.G. JAGADEESH, H.K. SUHAS, V. RAMAMURTI

The free vibration analysis of cyclic symmetric structures is considered as a Hermitian eigenvalue problem in semi‐complex domain using subspace iteration method is presented. The…