Engineering Computations: Volume 1 Issue 1

Infinite elements for static problems

Peter Bettess, Jacqueline A. Bettess

This paper is concerned with static problems, i.e. those which do not change with time. Dynamic problems will be considered in a sequel. The historical development of infinite…

Design and analysis of fabric structures with the finite element method

Alan Leewood, Joop C. Nagtegaal

The application of the finite element method for the design and analysis of fabric structures is discussed. The basic concepts are outlined, and illustrated with practical…

Adaptability of truly modular software

I.M. Smith

The paper illustrates how software designed and constructed in a truly modular style can rapidly be adapted to exploit new developments in analytical techniques. Given the…

Colouring isoparametric contours

J.E. Akin, W.H. Gray, Q.D. Zhang

A procedure presented for displaying variables in colour on an isoparametric surface. It utilizes isoparametric interpolation functions to produce continuous colour variations on…

Stress computation in elastoplasticity

J.M.M.C. Marques

Stress computation in finite element materially non‐linear analysis is an important problem that has perhaps been receiving less attention than it deserves. Not only does it…

A new approach to finite element modelling of flexible rotors

M. Geradin, N. Kill

A 3‐dimensional formalism adapted to critical speed and stability analysis of rotating machinery is presented. Gyroscopic effects are properly taken into account in the expression…

DART — a computer program for the design of thin concrete shells of revolution

W.S. Doyle, A.R. Lloyd

The finite element analysis capabilities of DART and the design routines for the computerized design in accordance with CP 110 and BS 5337 are briefly described. The DART program…

A continuum mechanics based four‐node shell element for general non‐linear analysis

Eduardo N. Dvorkin, Klaus‐Jürgen Bathe

A new four‐node (non‐flat) general quadrilateral shell element for geometric and material non‐linear analysis is presented. The element is formulated using three‐dimensional…

Implications of nodal valency and of redundancy ratio

Bruce M. Irons

Engineering Computations is aimed primarily at users of finite elements. Therefore, speculations of certain kinds — especially those based on experience, which often lead to…

Jacobian determinant in isoparametric elements

Bruce M. Irons, Nigel G. Shrive

The problem is trivial. It has probably been covered already, in early undergraduate calculus. At any rate, the equivalent in one dimension is well known: