Finite Element Analysis for Design Engineers

Finite Element Analysis for Design Engineers

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Finite Element Analysis (FEA) has been widely implemented by the automotive industry as a productivity tool for design engineers to reduce both development time and cost. This essential work serves as a guide for FEA as a design tool and addresses the specific needs of design engineers to improve productivity. It provides a clear presentation that will help practitioners to avoid mistakes. Easy to use examples of FEA fundamentals are clearly presented that can be simply applied during the product development process. The FEA process is fully explored in this fundamental and practical approach that includes: Understanding FEA basicsCommonly used modeling techniquesApplication of FEA in the design processFundamental errors and their effect on the quality of resultsHands-on simple and informative exercisesThis indispensable guide provides design engineers with proven methods to analyze their own work while it is still in the form of easily modifiable CAD models. Simple and informative exercises provide examples for improving the process to deliver quick turnaround times and prompt implementation.
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Product details

  • Hardback | 284 pages
  • 152 x 229 x 24mm | 784g
  • SAE International
  • Warrendale, United States
  • Revised
  • 2nd Revised edition
  • 0768082315
  • 9780768082319

Table of contents

AcknowledgementsPrefaceChapter 1:?Introduction1.1 What Is Finite Element Analysis?1.2 What Is the Place of Finite Element Analysis Among Other Tools of Computer-Aided Engineering?1.3 Fields of Application of FEA and Mechanism Analysis; Differences Between Structures and Mechanisms1.4 Fields of Application of FEA and CFD1.5 What Is "FEA for Design Engineers"?1.6 Importance of Hands-On ExercisesChapter 2:?From CAD Model to Results of Finite Element Analysis2.1 Formulation of the Mathematical Model2.2 Selecting Numerical Method to Solve the Mathematical Model2.2.1 Selected Numerical Methods in Computer Aided Engineering2.2.2 Reasons for the Dominance of Finite Element Method2.3 The Finite Element Model2.3.1 Meshing2.3.2 Formulation of Finite-Element Equations2.3.3 Errors in FEA Results2.4 Verification and Validation of FEA ResultsChapter 3:?Fundamental Concepts of Finite Element Analysis3.1 Formulation of a Finite Element3.1.1 Closer Look at Finite Element3.1.2 Requirements to be Satisfied by Displacement Interpolation Functions3.1.3 Artificial Restraints3.2 The Choice of Discretization3.3 Types of Finite Elements3.3.1 Element Dimensionality3.3.2 Element Shape3.3.3 Element Order and Element Type3.3.4 Summary of Commonly Used Elements3.3.5 Element Modeling CapabilitiesChapter 4:?Controlling Discretization Errors4.1 Presenting Stress Results4.2 Types of Convergence Process4.2.1 h Convergence by Global Mesh Refinement4.2.2 h Convergence Process by Local Mesh Refinement4.2.3 Adaptive h Convergence Process4.2.4 p Convergence Process4.2.5 The Choice of Convergence Process4.3 Discretization Error4.3.1 Convergence Error4.3.2 Solution Error4.4 Problems With Convergence4.4.1 Stress Singularity4.4.2 Displacement Singularity4.5 Hands-On Exercises4.5.1 Hollow Plate (Figure 4.33)4.5.2 L Bracket (Figure 4.34)4.5.3 2D Beam (Figure 4.35)Chapter 5:?Finite Element Mesh5.1 Meshing Techniques5.1.1 Manual Meshing5.1.2 Semiautomatic Meshing5.1.3 Automeshing5.2 Mesh Compatibility5.2.1 Compatible Elements5.2.2 Incompatible Elements5.2.3 Forced Compatibility5.3 Common Meshing Problems5.3.1 Element Distortion5.3.2 Mesh Adequacy5.3.3 Element Mapping to Geometry5.3.4 Incorrect Conversion to Shell Model5.4 Hands-On Exercises5.4.1 BRACKET01 (Figure 5.24)5.4.2 Cantilever Beam (Figure 5.25)Chapter 6:?Modeling Process6.1 Modeling Steps6.1.1 Definition of the Objective of Analysis6.1.2 Selection of the Units of Measurement6.1.3 Geometry Preparation6.1.4 Definition of Material Properties6.1.5 Definition of Boundary Conditions6.2 Modeling Techniques6.2.1 Mirror Symmetry and Antisymmetry Boundary Conditions6.2.2 Axial Symmetry6.2.3 Cyclic Symmetry6.2.4 Realignment of Degrees of Freedom6.3 Hands-On Exercises6.3.1 BRACKET02-1 (Figure 6.14)6.3.2 BRACKET02-2 (Figure 6.15)6.3.3 BRACKET02-3 (Figure 6.16)6.3.4 Shaft (Figure 6.17)6.3.5 Pressure Tank (Figure 6.18)6.3.6 RING (Figure 6.19)6.3.7 Link (Figure 6.20)Chapter 7:?Nonlinear Static Structural Analysis7.1 Classification of Different Types of Nonlinearities7.2 Large Displacement Analysis7.3 Membrane Stress Stiffening7.4 Contact7.5 Hands-On Exercises7.5.1 Cantilever Beam (Figure 7.1)7.5.2 Torsion Shaft (Figure 7.7)7.5.3 Round Plate (Figure 7.12)7.5.4 LINK (Figure 7.17)7.5.5 Sliding Support (Figure 7.18)7.5.6 CLAMP01 (Figure 7.21)7.5.7 CLAMP02 (Figure 7.26)7.5.8 Shrink Fit (Figure 7.27)Chapter 8:?Nonlinear Material Analysis8.1 Review of Nonlinear Material Models8.2 Elastic-Perfectly Plastic Material Model8.3 Use of Nonlinear Material to Control Stress Singularity8.4 Other Types of Nonlinearities8.5 Hands-On Exercises8.5.1 BRACKET NL (Figure 8.3)8.5.2 L BRACKET (Figure 8.7)Chapter 9:?Modal Analysis9.1 Differences Between Modal and Static Analysis 9.2 Interpretation of Displacement and Stress Results in Modal Analysis9.3 Modal Analysis With Rigid Body Modes9.4 Importance of Supports in Modal Analysis9.5 Applications of Modal Analysis9.5.1 Finding Modal Frequencies and Associated Shapes of Vibration9.5.2 Locating "Weak Spots" in Structure9.5.3 Modal Analysis Provides Input to Vibration Analysis9.6 Prestress Modal Analysis9.7 Symmetry and Antisymmetry Boundary Conditions in Modal Analysis9.8 Convergence of Modal Frequencies9.9 Meshing Consideration for Modal Analysis9.10 Hands-On Exercises9.10.1 Tuning Fork (Figure 9.12)9.10.2 Box (Figure 9.1)9.10.3 Airplane (Figure 9.2)9.10.4 Ball (Figure 9.4)9.10.5 Link (Figure 9.5)9.10.6 Helicopter Blade (Figure 9.7)9.10.7 Column (Figure 9.8)9.10.8 Bracket (Figure 9.10)Chapter 10:?Buckling Analysis10.1 Linear Buckling Analysis10.2 Convergence of Results in Linear Buckling Analysis10.3 Nonlinear Buckling Analysis10.4 Summary10.5 Hands-On Exercises10.5.1 Notched Column-Free End (Figure 10.1)10.5.2 Notched Column-Sliding End (Figure 10.2)10.5.3 Button (Figure 10.11)10.5.4 Curved Column (Figure 10.15)10.5.5 Stand (Figure 10.16)10.5.6 CURVED_SHEET (Figure 10.17)Chapter 11:?Vibration Analysis11.1 Modal Superposition Method11.2 Time Response Analysis11.3 Frequency Response Analysis./li>11.4 Nonlinear Vibration Analysis11.5 Hands-On Exercises11.5.1 Hammer Impulse Load (Figure 11.2)11.5.2 Hammer Beating (Figure 11.2)11.5.3 ELBOW_PIPE (Figure 11.7)11.5.4 Centrifuge (Figure 11.10)11.5.5 PLANK (Figure 11.13)Chapter 12:?Thermal Analysis12.1 Heat Transfer Induced by Prescribed Temperatures12.2 Heat Transfer Induced by Heat Power and Convection12.3 Heat Transfer by Radiation12.4 Modeling Considerations in Thermal Analysis12.5 Challenges in Thermal Analysis12.6 Hand-On Exercises12.6.1 Bracket (Figure 12.1)12.6.2 Heat Sink (Figure 12.2)12.6.3 Channel (Figure 12.4)12.6.4 Space Heater (Figure 12.6)Chapter 13:?Implementation of Finite Element Analysis in the Design Process13.1 Differences Between CAD and FEA Geometry13.1.1 Defeaturing13.1.2 Idealization13.1.3 Cleanup13.2 Common Meshing Problems13.3 Mesh Inadequacy13.4 Integration of CAD and FEA Software13.4.1 Stand-Alone FEA Software13.4.2 FEA Programs Integrated With CAD13.4.3 Computer-Aided Engineering Programs13.5 FEA Implementation13.5.1 Positioning of CAD and FEA Activities13.5.2 Personnel Training13.5.3 FEA Program Selection13.5.4 Hardware Selection13.5.5 Building Confidence in the FEA13.5.6 Return-On Investment13.6 FEA Project13.6.1 Major Steps in FEA Project13.6.2 FEA Report13.6.3 Importance of Documentation and Backups13.6.4 Contracting Out FEA Services13.6.5 Common Errors in the FEA ManagementChapter 14:?Misconceptions and Frequently Asked Questions14.1 FEA Quiz14.2 Frequently Asked QuestionsChapter 15:?FEA ResourcesReferencesChapter 16:?Glossary of TermsChapter 17:?List of ExercisesIndexAbout the Author
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