Cover image for Finite Element Method : An Introduction with Partial Differential Equations.
Finite Element Method : An Introduction with Partial Differential Equations.
Title:
Finite Element Method : An Introduction with Partial Differential Equations.
Author:
Davies, A. J.
ISBN:
9780191630330
Personal Author:
Edition:
2nd ed.
Physical Description:
1 online resource (291 pages)
Contents:
Cover -- Title Page -- Copyright Page -- Preface -- Contents -- 1 Historical introduction -- 2 Weighted residual and variational methods -- 2.1 Classification of differential operators -- 2.2 Self-adjoint positive definite operators -- 2.3 Weighted residual methods -- 2.4 Extremum formulation: homogeneous boundary conditions -- 2.5 Non-homogeneous boundary conditions -- 2.6 Partial differential equations: natural boundary conditions -- 2.7 The Rayleigh-Ritz method -- 2.8 The 'elastic analogy' for Poisson's equation -- 2.9 Variational methods for time-dependent problems -- 2.10 Exercises and solutions -- 3 The finite element method for elliptic problems -- 3.1 Difficulties associated with the application of weighted residual methods -- 3.2 Piecewise application of the Galerkin method -- 3.3 Terminology -- 3.4 Finite element idealization -- 3.5 Illustrative problem involving one independent variable -- 3.6 Finite element equations for Poisson's equation -- 3.7 A rectangular element for Poisson's equation -- 3.8 A triangular element for Poisson's equation -- 3.9 Exercises and solutions -- 4 Higher-order elements: the isoparametric concept -- 4.1 A two-point boundary-value problem -- 4.2 Higher-order rectangular elements -- 4.3 Higher-order triangular elements -- 4.4 Two degrees of freedom at each node -- 4.5 Condensation of internal nodal freedoms -- 4.6 Curved boundaries and higher-order elements: isoparametric elements -- 4.7 Exercises and solutions -- 5 Further topics in the finite element method -- 5.1 The variational approach -- 5.2 Collocation and least squares methods -- 5.3 Use of Galerkin's method for time-dependent and non-linear problems -- 5.4 Time-dependent problems using variational principles which are not extremal -- 5.5 The Laplace transform -- 5.6 Exercises and solutions -- 6 Convergence of the finite element method.

6.1 A one-dimensional example -- 6.2 Two-dimensional problems involving Poisson's equation -- 6.3 Isoparametric elements: numerical integration -- 6.4 Non-conforming elements: the patch test -- 6.5 Comparison with the finite difference method: stability -- 6.6 Exercises and solutions -- 7 The boundary element method -- 7.1 Integral formulation of boundary-value problems -- 7.2 Boundary element idealization for Laplace's equation -- 7.3 A constant boundary element for Laplace's equation -- 7.4 A linear element for Laplace's equation -- 7.5 Time-dependent problems -- 7.6 Exercises and solutions -- 8 Computational aspects -- 8.1 Pre-processor -- 8.2 Solution phase -- 8.3 Post-processor -- 8.4 Finite element method (FEM) or boundary element method (BEM)? -- Appendix A Partial differential equation models in the physical sciences -- A.1 Parabolic problems -- A.2 Elliptic problems -- A.3 Hyperbolic problems -- A.4 Initial and boundary conditions -- Appendix B Some integral theorems of the vector calculus -- Appendix C A formula for integrating products of area coordinates over a triangle -- Appendix D Numerical integration formulae -- D.1 One-dimensional Gauss quadrature -- D.2 Two-dimensional Gauss quadrature -- D.3 Logarithmic Gauss quadrature -- Appendix E Stehfest's formula and weights for numerical Laplace transform inversion -- References -- Index.
Abstract:
The finite element method is a technique for solving problems in applied science and engineering. The essence of this book is the application of the finite element method to the solution of boundary and initial-value problems posed in terms of partial differential equations. The method is developed for the solution of Poisson's equation, in a weighted-residual context, and then proceeds to time-dependent and nonlinear problems. The relationship with the variational approach is alsoexplained. This book is written at an introductory level, developing all the necessary concepts where required. Consequently, it is well-placed to be used as a textbook for a course in finite elements for final year undergraduates, the usual place for studying finite elements. There are worked examples throughout and each chapter has a set of exercises with detailed solutions.
Local Note:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
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