Engineering Computations: Volume 10 Issue 4

SOME STUDIES ON THE OPTIMIZATION OF VARIABLE THICKNESS PLATES AND SHELLS

E. HINTON, S.M.B. AFONSO, N.V.R. RAO

The optimization of variable thickness plates and shells is studied. In particular, three types of shell are considered: hyperbolic paraboloid, conoid and cylindrical shell. The…

A STUDY OF MESH OPTIMALITY CRITERIA IN ADAPTIVE FINITE ELEMENT ANALYSIS

E. OÑATE, G. BUGEDA

The concepts of solution error and optimal mesh in adaptive finite element analysis are revisited. It is shown that the correct evaluation of the convergence rate of the error…

AN EFFECTIVE TECHNIQUE FOR MODELLING 2D METAL FORMING PROCESSES USING AN EULERIAN FORMULATION

EDUARDO N. DVORKIN, EVA G. PETÖCZ

In order to develop an engineering tool for modelling 2D metal forming processes we implemented in the flow formulation the pseudo‐concentrations technique and a quadrilateral…

SOME INTERESTING RESULTS IN LARGE STRAIN STUDIES

Y. TSUI, Y.M. CHENG

Large strain model can be formulated in terms of the Lagrangian or the Eulerian frame. In this paper, the Eulerian type large strain models are studied. Numerical examples on the…

WAVELET BASED GREEN'S FUNCTION APPROACH TO 2D PDEs

KEVIN AMARATUNGA, JOHN R. WILLIAMS

We describe how wavelets may be used to solve partial differential equations. These problems are currently solved by techniques such as finite differences, finite elements and…

A NOTE ON THE ACCURACY OF THE GECKELER APPROXIMATION

A. ZINGONI, M.N. PAVLOVIĆ

A simple estimate of the accuracy of the widely‐used Geckeler approximation for the axisymmetric bending of non‐shallow spherical shells is presented. Based on the…