What Every Engineer Should Know about Computational Techniques of Finite Element Analysis  book cover
2nd Edition

What Every Engineer Should Know about Computational Techniques of Finite Element Analysis

ISBN 9781439802946
Published April 28, 2009 by CRC Press
350 Pages 68 B/W Illustrations

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Book Description

Finite element analysis (FEA) has become the dominant tool of analysis in many industrial fields of engineering, particularly in mechanical and aerospace engineering. This process requires significant computational work divided into several distinct phases. What Every Engineer Should Know About Computational Techniques of Finite Element Analysis offers a concise, self-contained treatment of FEA and all of the tools needed for efficient use and practical implementation.

This book provides you with a walk-through of the process from the physical model to the computed solution. Based on the author's thirty years of practical experience in finite element analysis in the shipbuilding, aerospace, and automobile industries, it describes the transformation of the physical problem into a mathematical model, reduction of the model to a more efficient, numerically solvable form, and the solution of the problem using specific computational techniques. The author discusses time and frequency domain solutions as used in practice, as well as the representation of the computed results.

What Every Engineer Should Know About Computational Techniques of Finite Element Analysis serves as a to-the-point guide to using or implementing FEA for both beginners and everyday users who must apply the finite element method to your daily work. The techniques can be easily executed in most available FEA software packages.

CRC Press Authors Speak

Louis Komzsik introduces you to two books that share a common mathematical foundation, the finite element analysis technique. Watch the video.

Table of Contents

Finite Element Analysis
Solution of Boundary Value Problems
Finite Element Shape Functions
Finite Element Basis Functions
Assembly of Finite Element Matrices
Element Matrix Generation
Local to Global Coordinate Transformation
A Quadrilateral Finite Element
Finite Element Model Generation
Spline Approximation
Geometric Modeling Objects
Geometric Model Discretization
Delaunay Mesh Generation
Modeling of Physical Phenomena
Lagrange's Equations of Motion
Continuum Mechanical Systems
Finite Element Analysis of Elastic Continuum
A Tetrahedral Finite Element
Equation of Motion of Mechanical System
Transformation to Frequency Domain
Constraints and Boundary Conditions
The Concept of Multi-Point Constraints
The Elimination of Multi-Point Constraints
The Axial Bar Element
The Concept of Single Point Constraints
The Elimination of Single Point Constraints
Singularity Detection of Finite Element Models
Local Singularities
Global Singularities
Massless Degrees of Freedom
Industrial Case Studies

Matrix Factorization and Linear System Solution
Finite Element Matrix Reordering
Sparse Matrix Factorization
Multifrontal Factorization
Linear System Solution
Distributed Factorization and Solution
Factorization Case Study
Static Condensation
Single Level, Single Component Condensation
Computational Example
Single Level, Multiple Component Condensation
Multiple Level Static Condensation
Static Condensation Case Study
Spectral Computations
Spectral Transformation
Lanczos Reduction
Generalized Eigenvalue Problem
Eigenvalue Computation
Distributed Eigenvalue Computation
Normal Modes Analysis Case Study
Complex Spectral Computations
Complex Modes Analysis Case Study
Dense Eigenvalue Analysis
Householder Reduction Techniques
Tridiagonal Reduction
Reduction to Hessenberg Form
Dynamic Reduction
Single Level, Single Component Dynamic Reduction
Accuracy of Dynamic Reduction
Computational Example
Single Level, Multiple Component Dynamic Reduction
Multiple Level Dynamic Reduction
Multibody Analysis Application
Component Modal Synthesis
Single Level, Single Component Modal Synthesis
Mixed Boundary Component Mode Reduction
Computational Example
Single Level, Multiple Component Modal Synthesis
Multiple Level Modal Synthesis
Component Modal Synthesis Case Study

Modal Solution Technique
Modal Reduction
Truncation Error in Modal Reduction
The Method of Residual Flexibility
The Method of Mode Acceleration
Coupled Modal Solution Application
Transient Response Analysis
The Central Difference Method
The Newmark Method
Starting Conditions and Time Step Changes
Stability of Time Integration Techniques
Transient Solution Case Study
Frequency Domain Analysis
Direct Frequency Response Analysis
Reduced Order Frequency Response Analysis
Accuracy of Reduced Order Solution
Frequency Response Case Study
Nonlinear Analysis
Introduction to Nonlinear Analysis
Newton-Raphson Methods
Quasi-Newton Iteration Techniques
Convergence Criteria
Computational Example
Nonlinear Dynamics
Sensitivity and Optimization
Design Sensitivity
Design Optimization
Planar Bending of the Bar
Computational Example
Eigenfunction Sensitivities
Variational Analysis
Engineering Result Computations
Displacement Recovery
Stress Calculation
Nodal Data Interpolation
Level Curve Computation
Engineering Results Case Study
Closing Remarks

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Dr. Louis Komzsik is the chief numerical analyst in the Office of Architecture and Technology at Siemens PLM Software.

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Author - Louis  Komzsik

Louis Komzsik

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"It is an excellent presentation really of what engineers should know about computational techniques in FEA. The descriptions of the various subjects are very clear and transparently expose the facts.

"I hope engineers are interested to learn these lectures, which give them the opportunity to take a critical position in their doing.

"This is necessary because
- computing uses floating point models while classical theories use inductive and deductive models
- computing is essentially finite while mathematics is the science of infinite
- computing sometimes promotes logical mistakes

"Also in view of these more or less philosophical aspects your book will sharpen the thinking about limitations of application of the FE technique."
-Dr. Otto Gartmeier, Manager, NVH Optimization, Daimler Chrysler Corporation

" I wish this book had been published earlier! …If you use NASTRAN on a daily basis as the Number 1 Code, you will find that Dr. Komzsik's book is unique and outstanding, compared to all other Finite Element books. Look at the real life examples. It shows that Dr. Komzsik studied mathematics and then was, for over 20 years, one of the team leaders at MSC developing and maintaining NASTRAN. All of the important features in real life applications are explained in a few sentences and illustrated if necessary…
"I highly recommend this excellent book for every engineer. Even for students, it is very affordable and should be used as a standard reference whenever a Finite Element code is applied."
-Dr. Ortwin Ohtmer, Professor of Mechanical Engineering, California State University, Long Beach, USA