Engineering Computations: Volume 3 Issue 1

Three‐dimensional unsteady seepage through an earth dam with accretion

C.S. Gupta, J.C. Bruch, V. Comincioli

A numerical solution to the free boundary problem of three‐dimensional transient seepage through an earth dam with accretion is presented. The numerical model uses a Baiocchi type…

Local equivalent constant representation of non‐linear damping mechanisms

S. Rakheja, S. Sankar

The non‐linear damping mechanisms are expressed in two general forms: velocity dependent and displacement dependent. The non‐linear damping phenomena are expressed by an array of…

Software virtual machines for development of finite element systems

Robert H. Dodds, Leonard A. Lopez

The software virtual machine (SVM) concept is described as a methodology to reduce the manpower required to implement and maintain finite element software. A SVM provides the…

Data structures for finite element modelling

D. Servranckx, A.A. Mufti

The graphical representation of a finite element model (undirected graphs) imposes some constraints on the choice of storage techniques and data structures; first, the storage…

Non‐linear vibration analysis of multilayer sandwich plates by incremental finite elements: 1. Theoretical development

V.P. Iu, Y.K. Cheung

The first part of this paper presents an incremental variational principle and an incremental finite element in time‐space domain for the analysis of large amplitude, periodic…

Non‐linear vibration analysis of multilayer sandwich plates by incremental finite elements: 2. Solution techniques and examples

V.P. Iu, Y.K. Cheung

The theoretical development of the incremental finite element for non‐linear vibration of multilayer sandwich plates was presented in Part 1 and the equation of motion was…

Incompressible swirling flows

J.I. Ramos

A mathematical model has been developed to study incompressible, isothermal, turbulent, confined, swirling flows. The model solves the conservation equations of mass, momentum…

Interactive elastic and inelastic response spectrum analysis of multistorey buildings

Khing Phan, Hojjat Adeli

An interactive menu driven microcomputer program is presented for elastic and inelastic earthquake response spectrum analysis of multistorey and multibay buildings. The program is…

Improvement of stress accuracy in the hybrid finite element method

Hou Cheng Huang, Jing Yu Zhang

We describe how to improve the accuracy of stress in the application of the hybrid finite element method. The idea is based on the fact that the assumed stress hybrid method is…

Using the conjugate gradient method with preconditioning for solving FEM approximations of elasticity problems

M. Bercovier, A. Rosenthal

A fast assembly scheme for FEM sparse matrices is given. For the solution we compare the conjugate gradient and two preconditionings for this method in the case of plane strain…