Ami2D - 2D finite element analysis for the Amiga Copyright © 1992,1993,1994 by Russell Leighton date: July 25, 1994 version: 2.0 Abstract Ami2D forms the core of a collection of codes developed to perform various analyses on structures using the finite element technique. Specifically, Ami2D is a pre/post-processor used to create two dimensional finite element models and to interpret the results from subsequent solutions. It was developed to handle both "plane" and axisymmetric two dimensional finite element analysis problems. It is a fairly general capability in the sense that a wide variety of two dimensional problems can be modeled by Ami2D. Other codes are included to provide a fairly complete analysis capability. These codes include the solvers (Lin2D and Nln2D), a node equivilence code (Equ2D), a node order optimizer (Opt2D), and a couple of ancillary codes (Rexxcon and Rexxbar). Of course, the user is free to utilize other utility codes to enhance the operation and functionality of this collection. The main features of the Ami2D collection are as follows: * may be run in the background or interactively * two-dimensional plane or axisymmetric problems * cartesian or polar coordinate systems * uses `ARexx' macro language * linear and quadratic isoparametric elements available * no limit on number of nodes, elements, materials, or boundary conditions (only limited by memory) * no need to specify problem size (determined at run time) * group (part) definition/manipulation * Dirchlet (constraint) or Neumann (flux), point or distributed boundary conditions * globally or locally referenced material properties * laminated materials * graphical interface * definable post-processing functions * command aliases for customized uses * linear and nonlinear (geometric) solvers provided * solvers use a symmetric banded matrix storage format * solvers can handle coupled analyses * node order optimizer for bandwidth reduction * node equivilence code for part "welding" * ancillary codes provided for integrated, interactive environment