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Finite Element Modeling and Simulation with ANSYS Workbench, Second Edition 2nd edition [Kõva köide]

(University of Cincinnati, Ohio, USA), (Washington State University, Vancouver, USA)
  • Formaat: Hardback, 472 pages, kõrgus x laius: 254x178 mm, kaal: 1070 g, 8 Tables, black and white; 514 Illustrations, color
  • Ilmumisaeg: 28-Sep-2018
  • Kirjastus: CRC Press
  • ISBN-10: 1138486299
  • ISBN-13: 9781138486294
  • Formaat: Hardback, 472 pages, kõrgus x laius: 254x178 mm, kaal: 1070 g, 8 Tables, black and white; 514 Illustrations, color
  • Ilmumisaeg: 28-Sep-2018
  • Kirjastus: CRC Press
  • ISBN-10: 1138486299
  • ISBN-13: 9781138486294
Finite Element Modeling and Simulation with ANSYS Workbench 18, Second Edition, combines finite element theory with real-world practice. Providing an introduction to finite element modeling and analysis for those with no prior experience, and written by authors with a combined experience of 30 years teaching the subject, this text presents FEM formulations integrated with relevant hands-on instructions for using ANSYS Workbench 18. Incorporating the basic theories of FEA, simulation case studies, and the use of ANSYS Workbench in the modeling of engineering problems, the book also establishes the finite element method as a powerful numerical tool in engineering design and analysis.

Features











Uses ANSYS Workbench 18, which integrates the ANSYS SpaceClaim Direct Modeler into common simulation workflows for ease of use and rapid geometry manipulation, as the FEA environment, with full-color screen shots and diagrams.





Covers fundamental concepts and practical knowledge of finite element modeling and simulation, with full-color graphics throughout.





Contains numerous simulation case studies, demonstrated in a step-by-step fashion.





Includes web-based simulation files for ANSYS Workbench 18 examples. Provides analyses of trusses, beams, frames, plane stress and strain problems, plates and shells, 3-D design components, and assembly structures, as well as analyses of thermal and fluid problems.
Preface xi
Authors xiii
1 Introduction 1(20)
1.1 Some Basic Concepts
1(3)
1.1.1 Why FEA?
1(1)
1.1.2 Finite Element Applications in Engineering
1(2)
1.1.3 FEA with ANSYS Workbench
3(1)
1.1.4 A Brief History of FEA
3(1)
1.1.5 A General Procedure for FEA
4(1)
1.2 An Example in FEA: Spring System
4(9)
1.2.1 One Spring Element
5(1)
1.2.2 A Spring System
6(3)
1.2.2.1 Assembly of Element Equations: Direct Approach
6(2)
1.2.2.2 Assembly of Element Equations: Energy Approach
8(1)
1.2.3 Boundary and Load Conditions
9(1)
1.2.4 Solution Verification
10(1)
1.2.5 Example Problems
10(3)
1.3 Overview of ANSYS Workbench
13(4)
1.3.1 The User Interface
13(1)
1.3.2 The Toolbox
14(1)
1.3.3 The Project Schematic
14(2)
1.3.4 Working with Cells
16(1)
1.3.5 The Menu Bar
16(1)
1.4 Summary
17(1)
Problems
18(3)
2 Bars and Trusses 21(44)
2.1 Introduction
21(1)
2.2 Review of the 1-D Elasticity Theory
21(1)
2.3 Modeling of Trusses
22(1)
2.4 Formulation of the Bar Element
23(9)
2.4.1 Stiffness Matrix: Direct Method
23(2)
2.4.2 Stiffness Matrix: Energy Approach
25(2)
2.4.3 Treatment of Distributed Load
27(1)
2.4.4 Bar Element in 2-D and 3-D
28(3)
2.4.4.1 2-D Case
28(3)
2.4.4.2 3-D Case
31(1)
2.4.5 Element Stress
31(1)
2.5 Examples with Bar Elements
32(8)
2.6 Case Study with ANSYS Workbench
40(19)
2.7 Summary
59(1)
2.8 Review of Learning Objectives
59(1)
Problems
59(6)
3 Beams and Frames 65(52)
3.1 Introduction
65(1)
3.2 Review of the Beam Theory
65(3)
3.2.1 Euler-Bernoulli Beam and Timoshenko Beam
65(2)
3.2.2 Stress, Strain, Deflection, and Their Relations
67(1)
3.3 Modeling of Beams and Frames
68(2)
3.3.1 Cross Sections and Strong/Weak Axis
68(1)
3.3.2 Support Conditions
69(1)
3.3.3 Conversion of a Physical Model into a Line Model
70(1)
3.4 Formulation of the Beam Element
70(6)
3.4.1 Element Stiffness Equation: The Direct Approach
71(1)
3.4.2 Element Stiffness Equation: The Energy Approach
72(2)
3.4.3 Treatment of Distributed Loads
74(1)
3.4.4 Stiffness Matrix for a General Beam Element
75(1)
3.5 Examples with Beam Elements
76(9)
3.6 Case Study with ANSYS Workbench
85(27)
3.7 Summary
112(1)
3.8 Review of Learning Objectives
112(1)
Problems
112(5)
4 Two-Dimensional Elasticity 117(44)
4.1 Introduction
117(1)
4.2 Review of 2-D Elasticity Theory
117(5)
4.2.1 Plane Stress
117(1)
4.2.2 Plane Strain
118(1)
4.2.3 Stress-Strain (Constitutive) Equations
119(1)
4.2.4 Strain and Displacement Relations
120(1)
4.2.5 Equilibrium Equations
121(1)
4.2.6 Boundary Conditions
121(1)
4.2.7 Exact Elasticity Solution
121(1)
4.3 Modeling of 2-D Elasticity Problems
122(1)
4.4 Formulation of the Plane Stress/Strain Element
123(14)
4.4.1 A General Formula for the Stiffness Matrix
124(1)
4.4.2 Constant Strain Triangle (CST or T3)
124(5)
4.4.3 Quadratic Triangular Element (LST or T6)
129(1)
4.4.4 Linear Quadrilateral Element (Q4)
130(1)
4.4.5 Quadratic Quadrilateral Element (Q8)
131(1)
4.4.6 Transformation of Loads
132(2)
4.4.7 Stress Calculation
134(2)
4.4.7.1 The von Mises Stress
134(1)
4.4.7.2 Averaged Stresses
135(1)
4.4.8 General Comments on the 2-D Elements
136(1)
4.5 Case Study with ANSYS Workbench
137(18)
4.6 Summary
155(1)
4.7 Review of Learning Objectives
155(1)
Problems
156(5)
5 Modeling and Solution Techniques 161(26)
5.1 Introduction
161(1)
5.2 Symmetry
161(2)
5.2.1 An Example
162(1)
5.3 Substructures (Superelements)
163(1)
5.4 Equation Solving
164(2)
5.4.1 Direct Methods (Gauss Elimination)
164(1)
5.4.2 Iterative Methods
164(1)
5.4.3 An Example: Gauss Elimination
164(1)
5.4.4 An Example: Iterative Method
165(1)
5.5 Nature of Finite Element Solutions
166(1)
5.6 Convergence of FEA Solutions
167(1)
5.7 Adaptivity (h-, p-, and hp-Methods)
167(1)
5.8 Case Study with ANSYS Workbench
168(14)
5.9 Summary
182(1)
5.10 Review of Learning Objectives
183(1)
Problems
183(4)
6 Plate and Shell Analyses 187(32)
6.1 Introduction
187(1)
6.2 Review of Plate Theory
187(7)
6.2.1 Force and Stress Relations in Plates
187(2)
6.2.2 Thin Plate Theory (Kirchhoff Plate Theory)
189(3)
6.2.2.1 Example: A Thin Plate
191(1)
6.2.3 Thick Plate Theory (Mindlin Plate Theory)
192(1)
6.2.4 Shell Theory
193(2)
6.2.4.1 Shell Example: A Cylindrical Container
193(1)
6.3 Modeling of Plates and Shells
194(1)
6.4 Formulation of the Plate and Shell Elements
195(4)
6.4.1 Kirchhoff Plate Elements
195(1)
6.4.2 Mindlin Plate Elements
196(1)
6.4.3 Discrete Kirchhoff Elements
197(1)
6.4.4 Flat Shell Elements
197(1)
6.4.5 Curved Shell Elements
198(1)
6.5 Case Studies with ANSYS Workbench
199(15)
6.6 Summary
214(1)
6.7 Review of Learning Objectives
214(1)
Problems
214(5)
7 Three-Dimensional Elasticity 219(42)
7.1 Introduction
219(1)
7.2 Review of Theory of Elasticity
219(3)
7.2.1 Stress-Strain Relation
220(1)
7.2.2 Displacement
221(1)
7.2.3 Strain-Displacement Relation
221(1)
7.2.4 Equilibrium Equations
221(1)
7.2.5 Boundary Conditions
222(1)
7.2.6 Stress Analysis
222(1)
7.3 Modeling of 3-D Elastic Structures
222(3)
7.3.1 Mesh Discretization
223(1)
7.3.2 Boundary Conditions: Supports
223(1)
7.3.3 Boundary Conditions: Loads
224(1)
7.3.4 Assembly Analysis: Contacts
224(1)
7.4 Formulation of Solid Elements
225(5)
7.4.1 General Formulation
225(1)
7.4.2 Typical Solid Element Types
226(1)
7.4.3 Formulation of a Linear Hexahedral Element Type
227(3)
7.4.4 Treatment of Distributed Loads
230(1)
7.5 Case Studies with ANSYS Workbench
230(25)
7.6 Summary
255(1)
7.7 Review of Learning Objectives
255(1)
Problems
255(6)
8 Structural Vibration and Dynamics 261(40)
8.1 Introduction
261(1)
8.2 Review of Basic Equations
261(6)
8.2.1 A Single DOF System
262(2)
8.2.2 A Multi-DOF System
264(3)
8.2.2.1 Mass Matrices
264(2)
8.2.2.2 Damping
266(1)
8.3 Formulation for Modal Analysis
267(4)
8.3.1 Modal Equations
269(2)
8.4 Formulation for Frequency Response Analysis
271(1)
8.4.1 Modal Method
271(1)
8.4.2 Direct Method
272(1)
8.5 Formulation for Transient Response Analysis
272(3)
8.5.1 Direct Methods (Direct Integration Methods)
273(1)
8.5.2 Modal Method
274(1)
8.6 Modeling Examples
275(2)
8.6.1 Modal Analysis
275(1)
8.6.2 Frequency Response Analysis
276(1)
8.6.3 Transient Response Analysis
276(1)
8.6.4 Cautions in Dynamic Analysis
276(1)
8.7 Case Studies with ANSYS Workbench
277(16)
8.8 Summary
293(1)
8.9 Review of Learning Objectives
294(1)
Problems
294(7)
9 Thermal Analysis 301(36)
9.1 Introduction
301(1)
9.2 Review of Basic Equations
301(5)
9.2.1 Thermal Analysis
301(2)
9.2.1.1 Finite Element Formulation for Heat Conduction
303(1)
9.2.2 Thermal Stress Analysis
303(3)
9.2.2.1 1-D Case
304(1)
9.2.2.2 2-D Cases
305(1)
9.2.2.3 3-D Case
305(1)
9.2.2.4 Notes on FEA for Thermal Stress Analysis
305(1)
9.3 Modeling of Thermal Problems
306(2)
9.3.1 Thermal Analysis
306(1)
9.3.2 Thermal Stress Analysis
306(2)
9.4 Case Studies with ANSYS Workbench
308(22)
9.5 Summary
330(1)
9.6 Review of Learning Objectives
330(1)
Problems
330(7)
10 Introduction to Fluid Analysis 337(36)
10.1 Introduction
337(1)
10.2 Review of Basic Equations
337(2)
10.2.1 Describing Fluid Motion
337(1)
10.2.2 Types of Fluid Flow
337(1)
10.2.3 Navier-Stokes Equations
338(1)
10.3 Modeling of Fluid Flow
339(2)
10.3.1 Fluid Domain
339(1)
10.3.2 Meshing
339(1)
10.3.3 Boundary Conditions
339(1)
10.3.4 Solution Visualization
340(1)
10.4 Case Studies with ANSYS Workbench
341(27)
10.5 Summary
368(1)
10.6 Review of Learning Objectives
368(1)
Problems
368(5)
11 Design Optimization 373(46)
11.1 Introduction
373(1)
11.2 Topology Optimization
373(1)
11.3 Parametric Optimization
374(1)
11.4 Design Space Exploration for Parametric Optimization
374(3)
11.4.1 Design of Experiments
375(2)
11.4.2 Response Surface Optimization
377(1)
11.5 Case Studies with ANSYS Workbench
377(38)
11.6 Summary
415(1)
11.7 Review of Learning Objectives
415(1)
Problems
415(4)
12 Failure Analysis 419(22)
12.1 Introduction
419(1)
12.2 Static Failure
419(2)
12.2.1 Ductile Failure
419(1)
12.2.1.1 Maximum Shear Stress Theory (Tresca Criterion)
419(1)
12.2.1.2 Distortion Energy Theory (von Mises Criterion)
420(1)
12.2.2 Brittle Failure
420(1)
12.2.2.1 Maximum Normal Stress Theory
420(1)
12.2.2.2 Mohr-Coulomb Theory
420(1)
12.3 Fatigue Failure
421(3)
12.3.1 Soderberg Failure Criterion
422(1)
12.3.2 Goodman Failure Criterion
422(1)
12.3.3 Gerber Failure Criterion
423(1)
12.4 Buckling Failure
424(1)
12.5 Case Studies with ANSYS Workbench
425(11)
12.6 Summary
436(1)
12.7 Review of Learning Objectives
436(1)
Problems
437(4)
Appendix 1: Review of Matrix Algebra 441(6)
Appendix 2: Photo Credits 447(2)
References 449(2)
Index 451
Dr. Xiaolin Chen is an associate professor of mechanical engineering and director of the Computer-Aided Engineering (CAE) Research Laboratory at the Washington State University, Vancouver campus. She received her BS in engineering mechanics from Shanghai Jiao Tong University, MS in mechanical design and theory from the State Key Laboratory of Mechanical System and Vibration affiliated with Shanghai Jiao Tong University, and her PhD in mechanical engineering from the University of Cincinnati. Her research interests include computational methods in solid mechanics, finite element analysis, boundary element analysis, reduced order modeling for dynamic systems, multiphysics phenomena and coupled-field problems, inverse problems, and regularization techniques.

Dr. Yijun Liu is a professor of Mechanical Engineering at the University of Cincinnati. He obtained his BS and MS in aerospace engineering from Northwestern Polytechnical University (China), and his PhD in theoretical and applied mechanics from the University of Illinois at Urbana-Champaign. Prior to joining the faculty, he conducted postdoctoral research at the Center of Nondestructive Evaluation of Iowa State University, and worked at Ford Motor Company as a CAE analyst. Dr. Lius interests are in computational mechanics, finite element method, boundary element method, and fast multipole methods for modeling problems with composite materials, fracture, fatigue, structural dynamics, and acoustics.