Finite Elements Methods


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FINITE ELEMENTS METHODS

Contents

Preface

1Computational modeling

    Introduction

Physical problems in engineering

Computational modeling using the FEM

Simulation

Visualization

2 Introduction to mechanics for solids and structures

Introduction

Equations for three-dimensional solids

Equations for two-dimensional solids

Equations for truss members

Equations for beams

Equations for plates

Remarks

3 Fundamentals for finite element method

Introduction

Strong and weak forms

Hamilton’s principle

FEM procedure

Static analysis

Analysis of free vibration Eigen value analysis

Transient response

Remarks

Review questions

4 FEM for trusses

Introduction

FEM equation

Worked examples

High order one-dimensional elements

Review questions

5 FEM for beams

Introduction

FEM equations

Remarks

Worked examples

Case study: resonant frequencies of micro resonant transducer

Review questions

6 FEM for frames

Introduction

FEM equations for planar frames

FEM equations for space frames

Remarks

Case study: finite element analysis of a bicycle frame

Review questions

7 FEM for two-dimensional solids

Introduction

Linear triangular elements

Linear rectangular elements

Linear quadrilateral elements

Higher order elements

Elements with curved edges

Comments on gauss integration

Case study: side frive micro-motor

Review questions

8 FEM for plates and shells

Introduction

Plate elements

Shell elements

Remarks

Case study: natural frequencies of micro-motor

Case study: transient analysis of a micro-motor

Review questions

9 FEM for 3D solids

Introduction

Tetrahedron element

Hexahedron element

Higher order elements

Elements with curved surfaces

Case study: stress and strain analysis of a quantum dot

Heterostructure

Review questions

10 Special purpose elements

Introduction

Crack tip elements

Methods for infinite domains

Finite strip elements

Strip element method (SEM)

11 Modeling techniques

Introduction

CPU time estimation

Geometry modeling

Meshing

Mesh compatibility

Use of symmetry

Modeling of offsets

Modelling of supports

Modelling of joints

Other applications of MPC equations

Implementation of MPC equations

Review questions

12 FEM for heat transfer problems

Field problems

Weighted residual approach for FEM

ID heat transfer problem

2D heat transfer problem

Summary

Case study: temperature distribution of heated road surface

Review questions

13 Using ABAQUS

Introduction

Basic building block: keywords and data lines

Using sets

ABAQUS input syntax rules

Defining a finite element model in ABAQUS

General procedures

References

Index