A Practical Guide to Reliable Finite Element Modelling (eBook)

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eBook Download: PDF
2008 | 1. Auflage
380 Seiten
John Wiley & Sons (Verlag)
978-0-470-51210-4 (ISBN)

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A Practical Guide to Reliable Finite Element Modelling - Alan Morris
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Many books have been written about the finite element method;
little however has been written about procedures that assist a
practicing engineer in undertaking an analysis in such a way that
errors and uncertainties can be controlled. In A Practical Guide to
Reliable Finite Element Modelling, Morris addresses this important
area. His book begins by introducing the reader to finite element
analysis (FEA), covering the fundamental principles of the method,
whilst also outlining the potential problems involved. He then
establishes consistent methods for carrying out analyses and
obtaining accurate and reliable results, concluding with a new
method for undertaking error control led analyses which is
illustrated by means of two case studies.

The book addresses a number of topics that:

* Systematically cover an
introduction to FEA, how computers build linear-static and
linear-dynamic finite element models, the identification of error
sources, error control methods and error-controlled analyses.

* Enable the reader to
support the design of complex structures with reliable, repeatable
analyses using the finite element method.

* Provide a basis for
establishing good practice that could underpin a legal defence in
the event of a claim for negligence.

A Practical Guide to Reliable Finite Element Modelling will
appeal to practising engineers engaged in conducting regular finite
element analyses, particularly those new to the field. It will also
be a resource for postgraduate students and researchers addressing
problems associated with errors in the finite element method.

This book is supported by an author maintained website at href="http://www.femec.co.uk/">http://www.femec.co.uk

Alan Morris has recently retired from his post at Cranfield University in the UK as Professor of Structural Analysis. His range of expertise covers the development and application of optimal design and analysis systems, with special emphasis on the finite element methods and structural optimisation programs. Previously, he was a Principal Research Officer in the Royal Aircraft Establishment (now QinetiQ) at Farnborough and was head of the Structures and Optimization Sections at the Advanced Concepts Section.

Preface.

Chapter 1. Introduction.

1.1 Aim of the book.

1.2 Finite Element Types - a Brief Overview.

1.3 Finite Element Analysis and Finite ElementRepresentations.

1.4 Multi-Model Analyses.

1.5 Consistency, Logic and Error Control.

1.6 Chapter Contents.

Chapter 2 Overview of Static Finite Element Analysis.

2.1 Introduction.

2.2 The Direct Method for Static Analyses.

2.3 Reducing the Problem Size.

Chapter 3: Overview of Dynamic Analysis

3.1 Introduction

3.2 Element Mass Matrix.

3.3 Additional Information that can be Extracted to Support aDynamic Finite Element Analysis.

3.4 Forced Responses.

3.5 Damped Forced Responses.

3.6 Reducing the Problem Size.

Chapter 4: What's Energy Got to Do with It?

4.1 Introduction .

4.2 Strain Energy.

4.3 Potential Energy.

4.4 Simple Bar.

4.5 General Case.

4.6 Minimum Potential Energy.

4.7 The Principle of Minimum Potential Energy Applied to aSimple Finite Element Problem.

4.8 Finite Element Formulation.

4.9 Direct Application to an Axial Bar Element.

4.10 Convergence in Energy and Convergence in Stress.

4.11 Results Interpretation.

4.12 Kinetic Energy.

4.13 Final Remark.

Chapter 5. Preliminary Review of Errors and Error Control.

5.1 Introduction.

5.2 The Finite Element Process.

5.3 Error and Uncertainty.

5.4 Novelty, Complexity and Experience.

5.5 Role of Testing.

5.6 Initial Steps.

5.7 Analysis Validation Plan (AVP).

5.8 Applied Common Sense.

5.9 The Process.

Chapter 6. Discretisation: Elements and Meshes or Some Ways toAvoid Generated Error.

6.1 Introduction.

6.2 Element Delivery.

6.3 Mesh Grading and Mesh Distortion.

6.4 The Accuracy Ladder.

Chapter 7. Idealisation Error Types and Sources.

7.1 Design Reduction and Idealisation Errors.

7.2 Analysis Features.

7.3 The Domain.

7.4 Levels of Abstraction.

7.5 Boundary Conditions.

7.6 Material Properties.

7.7 Loads and Masses.

Chapter 8. Error Control.

8.1 Introduction.

8.2 Approach and Techniques.

8.3 Accumulation of Errors and Uncertainties.

8.4 The Role of Testing.

Chapter 9. Error Controlled Analyses.

9.1 Introduction.

9.2 Is the Finite Element System Fit for Purpose.

9.3 Quality Report.

9.4 The Error and Uncertainty Control Method.

Chapter 10 FEMEC Walkthrough Example.

10.1 Introduction.

10.2 FEMEC Static Analysis Illustrative Problem.

10.3 A Brief Look at the Dynamic FEMEC World.

Index.

"The book is highly recommended for all engineering students,
researchers and practicing engineers involved in developing/
utilising finite element techniques. I have confidence that even an
experienced analyst would benefit from a review of this material!"
(The Aeronautical Journal, March 2010)

Erscheint lt. Verlag 31.7.2008
Sprache englisch
Themenwelt Mathematik / Informatik Mathematik Angewandte Mathematik
Naturwissenschaften Physik / Astronomie Mechanik
Technik Maschinenbau
Schlagworte Aeronautic & Aerospace Engineering • Computational / Numerical Methods • Finite-Element-Methode • Luft- u. Raumfahrttechnik • Maschinenbau • mechanical engineering • Rechnergestützte / Numerische Verfahren im Maschinenbau • Rechnergestützte / Numerische Verfahren im Maschinenbau
ISBN-10 0-470-51210-5 / 0470512105
ISBN-13 978-0-470-51210-4 / 9780470512104
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