## About this book

### Introduction

This text presents a highly original treatment of the fundamentals of FEM, developed using computer algebra, based on undergraduate-level engineering mathematics and the mechanics of solids. The book is divided into two distinct parts of nine chapters and seven appendices. The first chapter reviews the energy concepts in structural mechanics with bar problems, which is continued in the next chapter for truss analysis using *Mathematica* programs. The Courant and Clough triangular elements for scalar potentials and linear elasticity are covered in chapters three and four, followed by four-node elements. Chapters five and six describe Taig’s isoparametric interpolants and Iron’s patch test. Rayleigh vector modes, which satisfy point-wise equilibrium, are elaborated on in chapter seven along with successful patch tests in the physical (x,y) Cartesian frame. Chapter eight explains point-wise incompressibility and employs (Moore-Penrose) inversion of rectangular matrices. The final chapter analyzes patch-tests in all directions and introduces five-node elements for linear stresses. Curved boundaries and higher order stresses are addressed in closed algebraic form. Appendices give a short introduction to *Mathematica*, followed by truss analysis using symbolic codes that could be used in all FEM problems to assemble element matrices and solve for all unknowns. All *Mathematica* codes for theoretical formulations and graphics are included with extensive numerical examples.

### Keywords

### Bibliographic information

- DOI https://doi.org/10.1007/978-1-4939-7423-8
- Copyright Information Springer Science+Business Media, LLC 2018
- Publisher Name Springer, New York, NY
- eBook Packages Engineering
- Print ISBN 978-1-4939-7421-4
- Online ISBN 978-1-4939-7423-8
- Buy this book on publisher's site