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| موضوع: كتاب Introduction to Finite Element Analysis and Design - 2nd Edition الأربعاء 30 أغسطس 2023, 8:26 am | |
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أخواني في الله أحضرت لكم كتاب Introduction to Finite Element Analysis and Design - 2nd Edition Nam-Ho Kim, Bhavani V. Sankar, Ashok V. Kumar
و المحتوى كما يلي :
Table of Contents Cover Preface Chapter 1: Direct Method- Springs, Bars, and Truss Elements 1.1 ILLUSTRATION OF THE DIRECT METHOD 1.2 UNIAXIAL BAR ELEMENT 1.3 PLANE TRUSS ELEMENTS 1.4 THREEDIMENSIONAL TRUSS ELEMENTS (SPACE TRUSS) 1.5 THERMAL STRESSES 1.6 FINITE ELEMENT MODELING PRACTICE FOR TRUSS 1.7 PROJECTS 1.8 EXERCISES Chapter 2: Weighted Residual Methods for OneDimensional Problems 2.1 EXACT VS. APPROXIMATE SOLUTION 2.2 GALERKIN METHOD 2.3 HIGHERORDER DIFFERENTIAL EQUATIONS 2.4 FINITE ELEMENT APPROXIMATION 2.5 ENERGY METHODS 2.6 EXERCISES Chapter 3: Finite Element Analysis of Beams and Frames 3.1 REVIEW OF ELEMENTARY BEAM THEORY 3.2 RAYLEIGHRITZ METHOD 3.3 FINITE ELEMENT FORMULATION FOR BEAMS 3.4 PLANE FRAME ELEMENTS 3.5 BUCKLING OF BEAMS 3.6 BUCKLING OF FRAMES 3.7 FINITE ELEMENT MODELING PRACTICE FOR BEAMS 3.8 PROJECT 3.9 EXERCISES Chapter 4: Finite Elements for Heat Transfer Problems 4.1 INTRODUCTION 4.2 FOURIER HEAT CONDUCTION EQUATION4.3 FINITE ELEMENT ANALYSIS- DIRECT METHOD 4.4 GAI.ERKIN’S METHOD FOR HEAT CONDUCTION PROBLEMS 4.5 CONVECTION BOUNDARY CONDITIONS 4.6 TWODIMENSIONAL HEAT TRANSFER 4.7 3NODE TRIANGULAR ELEMENTS FOR TWODIMENSIONAL HEAT TRANSFER 4.8 FINITE ELEMENT MODELING PRACTICE FOR 2D HEAT TRANSFER 4.9 EXERCISES Chapter 5: Review of Solid Mechanics 5.1 INTRODUCTION 5.2 STRESS 5.3 STRAIN 5.4 STRESS-STRAIN RELATIONSHIP 5.5 BOUNDARY VALUE PROBLEMS 5.6 PRINCIPLE OF MINIMUM POTENTIAL ENERGY FOR PLANE SOLIDS 5.7 FAILURE THEORIES 5.8 SAFETY FACTOR 5.9 EXERCISES Chapter 6: Finite Elements for TwoDimensional Solid Mechanics 6.1 INTRODUCTION 6.2 TYPES OF TWODIMENSIONAL PROBLEMS 6.3 CONSTANT STRAIN TRIANGULAR (CST) ELEMENT 6.4 FOUR-NODE RECTANGULAR ELEMENT 6.5 AXISYMMETRIC ELEMENT 6.6 FINITE ELEMENT MODELING PRACTICE FOR SOLIDS 6.7 PROJECT 6.8 EXERCISES Chapter 7: Isoparametric Finite Elements 7.1 INTRODUCTION 7.2 ONEDIMENSIONAL ISOPARAMETRIC ELEMENTS 7.3 TWODIMENSIONAL ISOPARAMETRIC QUADRILATERAL ELEMENT 7.4 NUMERICAL INTEGRATION 7.5 HIGHERORDER QUADRILATERAL ELEMENTS 7.6 ISOPARAMETRIC TRIANGULAR ELEMENTS7.7 THREEDIMENSIONAL ISOPARAMETRIC ELEMENTS 7.8 FINITE ELEMENT MODELING PRACTICE FOR ISOPARAMETRIC ELEMENTS 7.9 PROJECTS 7.10 EXERCISES Chapter 8: Finite Element Analysis for Dynamic Problems 8.1 INTRODUCTION 8.2 DYNAMIC EQUATION OF MOTION AND MASS MATRIX 8.3 NATURAL VIBRATION: NATURAL FREQUENCIES AND MODE SHAPES 8.4 FORCED VIBRATION: DIRECT INTEGRATION APPROACH 8.5 METHOD OF MODE SUPERPOSITION 8.6 DYNAMIC ANALYSIS WITH STRUCTURAL DAMPING 8.7 FINITE ELEMENT MODELING PRACTICE FOR DYNAMIC PROBLEMS 8.8 EXERCISES Chapter 9: Finite Element Procedure and Modeling 9.6 INTRODUCTION 9.2 FINITE ELEMENT ANALYSIS PROCEDURES 9.3 FINITE ELEMENT MODELING ISSUES 9.4 ERROR ANALYSIS AND CONVERGENCE 9.5 PROJECT 9.6 EXERCISES Chapter 10: Structural Design Using Finite Elements 10.8 INTRODUCTION 10.2 CONSERVATISM IN STRUCTURAL DESIGN 10.3 INTUITIVE DESIGN: FULLY STRESSED DESIGN 10.4 DESIGN PARAMETERIZATION 10.5 PARAMETRIC STUDY- SENSITIVITY ANALYSIS 10.6 STRUCTURAL OPTIMIZATION 10.7 PROJECTS 10.8 EXERCISES Appendix Mathematical Preliminaries A.1 VECTORS AND MATRICES A.2 VECTORMATRIX CALCULUS A.3 MATRIX EQUATIONS AND SOLUTIONA.4 EIGENVALUES AND EIGENVECTORS A.5 QUADRATIC FORMS A.6 MAXIMA AND MINIMA OF FUNCTIONS A.7 EXERCISES Index End User License Agreement List of Tables Chapter 01 Table 1.1 Connectivity table for figure 1.1 Table 1.2 Connectivity table with element properties for example 1.5 Table 1.3 Nodal coordinates of space truss structure in example 1.6 Table 1.4 Element connectivity and direction cosines for truss structure in figure 1.21 Table 1.5 Element connectivity and direction cosines for truss structure in figure 1.23 Table 1.6 Solution of thermal stresses in a truss using the superposition method Table 1.7 Nodal coordinates of space truss structure in example 1.10 Chapter 02 Table 2.1 Comparison of approximate and exact solutions Table 2.2 Different types of finite elements Chapter 04 Table 4.1 Analogy between strucUiral and heat conduction problems Table 4.2 Connectivity table Chapter 05 Table 5.1 Description of stress components Table 5.2 Comparison of stress and strain Table 5.3 Explanations of uniaxial tension test Chapter 06 Table 6.1 Material property conversion between plane strain and plane stress problems Chapter 07 Table 7.1 Element connectivity Table 7.2 Gauss quadrature points and weightsTable 7.3 Gauss quadrature points and weights for triangles Table 7.4 Results for the plate with holes Chapter 08 Table 8.1 Newmark family of time integration algorithms Table 8.2 First six natural frequencies of cantilever beam Table 8.3 Modes shapes of vibration Table 8.4 Natural frequencies (Hz) of the Pining fork Table 8.5 Natural frequencies of the fully clamped beam Chapter 09 Table 9.1 Different types of finite elements Table 9.2 Patch tests for plane solids (E =1GPa, v = 0.3) Chapter 10 Table 10.1 Parametric study of a cantilevered beam Table 10.2 Input data for tenbar truss Table 10.3 Lower and upper bounds of design parameters (unit mm) List of Illustrations Chapter 01 Figure 1.1 Rigid bodies connected by springs Figure 1.2 Spring element (e) connected by node i and node j Figure 1.3 Freebody diagram of node 3 in the example shown in figure 1.1. The Ae) external force, F3 and the forces, /3 , exerted by the springs attached to the node are shown. Note the forces J3 act in the negative direction. Figure 1.4 Typical one dimensional bar problems Figure 1.5 Uniaxial bar finite element Figure 1.6 Force equilibrium at node i Figure 1.7 Two clamped uniaxial bars Figure 1.8 Onedimensional structure with three uniaxial bar elements Figure 1.9 Finite element model Figure 1.10 Freebody diagram of the structureFigure 1.11 A plane truss consisting of two members Figure 1.12 Local and global coordinate systems Figure 1.13 Local coordinate systems of the twobar truss Figure 1.14 Definition of twodimensional truss element Figure 1.15 Twobar truss structure Figure 1.16 Local coordinates of element 1 Figure 1.17 Local coordinates of element 2 Figure 1.18 Element force for element 1 in local coordinates Figure 1.19 Plane structure with three truss elements Figure 1.20 Threedimensional coordinates transformation Figure 1.21 Threebar space truss structure Figure 1.22 Effects of temperature change on the structure Figure 1.23 A threeelement truss: (a) The middle element is subjected to a temperature rise. This is the given problem, (b) A pair of compressive forces is applied to element 2 to prevent it from expanding. Titis is called problem I. (c) The forces in problem I are reversed. No thermal stresses are involved in this problem. Titis is called problem IL Figure 1.24 Force equilibrium at node 4 Figure 1.25 Threebar space truss structure Figure 1.26 Statically indeterminate vertical bar Figure 1.27 Thermally loaded three bars Figure 1.28 Twobar truss Figure 1.29 25-member space truss Figure 1.30 Plane truss and design domain for Project 1.2 Figure 1.31 Plane truss and design domain for Project 1.3 Figure 1.32 Tenbar truss structure for project 1.4 Chapter 02 Figure 2.1 Comparison of exact solution and approximate solutions for example 2.1 Figure 2.2 Weighted residual for differential equation in example 2.1 Figure 2.3 Comparison of exact solution and approximate solution and their derivatives for example 2.4 Figure 2.4 Comparison of u(x) and its derivative obtained by die Galerkin method forexample 2.5 Figure 2.5 Comparison of w" and w"' for the beam problem in example 2.6 Figure 2.6 Boundaryvalue problem in solid mechanics Figure 2.7 Piecewise linear approximation of the solution for a onedimensional problem Figure 2.8 Convergence of onedimensional finite element solution Figure 2.9 Domain discretization of onedimensional problem Figure 2.10 Interpolated solution and its gradient Figure 2.11 Function (faM and its derivative Figure 2.12 Trial function ^(x) for two equallength finite elements Figure 2.13 Exact solution u(x) and finite element solution u(x) Figure 2.14 Derivatives of the exact and finite element solutions Figure 2.15 Onedimensional finite element with interpolation functions Figure 2.16 Comparison of exact and approximate solution for example 2.8 Figure 2.17 A particle in equilibrium with four springs Figure 2.18 Equilibrium of massspring system Figure 2.19 Uniaxial bar under body force Bx and concentrated force F Figure 2.20 Example of a discrete system with finite number of degrees of freedom Figure 2.21 Uniaxial bar subject to distributed and concentrated forces Chapter 03 Figure 3.1 Deflection of a plane EulerBernoulli beam Figure 3.2 Positive directions for axial force, shear force, and bending moment of a plane beam Figure 3.3 Equilibrium of infinitesimal beam section under various loadings Figure 3.4 Simply supported beam under uniformly distributed load Figure 3.5 Comparison of finite element results with exact ones for a simply supported beam; (a) deflection, (b) bending moment, and (c) shear force Figure 3.6 Simply supported beam under a uniformly distributed load Figure 3.7 Comparison of finite element results with exact ones for a cantilevered beam; (a) deflection, (b) bending moment, and (c) shear force Figure 3.8 Positive directions for forces and couples in a beam elementFigure 3.9 Nodal displacements and rotations for the beam element Figure 3.10 Shape functions of the beam element Figure 3.11 Cantilevered beam element with nodal displacements Figure 3.12 Finite element models using four beam elements Figure 3.13 Finite element models of stepped cantilevered beam Figure 3.14 Work equivalent nodal forces for the distributed load Figure 3.15 Finite element models of stepped cantilevered beam Figure 3.16 Cantilevered beam under uniformly distributed load and couple Figure 3.17 Comparison of beam deflection and rotation with exact solutions; (a) deflection, (b) slope Figure 3.18 Comparison of bending moment and shear force with exact solutions; (a) bending moment, (b) shear force Figure 3.19 One element model with distributed force p Figure 3.20 Transverse displacement of the beam element Figure 3.21 Comparison of FE and analytical solutions for the beam shown in figure 3.19; (a) bending moment, (b) shear force Figure 3.22 Frame structure and finite elements Figure 3.23 Local degrees of freedom of plane frame element Figure 3.24 A twomember plane frame Figure 3.25 Deformed shape of the frame in figure 3.24. The displacements are magnified by a factor of 200 Figure 3.26 Freebody diagrams of elements 1 and 2 of the frame in example 3.10 Figure 3.27 Support reactions for the frame in example 3.10 Figure 3.28 Abeam subjected to axial force and an end couple Figure 3.29 Beam subjected to an axial tension and an end couple with a freebody diagram to determine M(x) Figure 3.30 End shortening of a cantilever beam under a compressive load Figure 3.31 Nondimensional tip deflection as a function of nondimensional axial force AL for a given end couple in a cantilever beam Figure 3.32 Deflection curve of a cantilever beam subjected to an end couple and different values of the axial force P Figure 3.33 Buckling mode shapes of a cantilever beam obtained using one beam finite elementFigure 3.34 Clampedhinged beam subjected to an axial force Figure 3.35 Buckling mode shapes for the beam in example 3.13 with two elements Figure 3.36 Degrees of freedom of plane portal frame Figure 3.37 A portal frame subjected to two axial forces Figure 3.38 First mode (assymteric or swaying mode) and second mode (symmteric mode) buckling of the portal frame in example 3.14 Figure 3.39 Beam bending with distributed loads Figure 3.40 Deflection curve of the beam Figure 3.41 Portal frame under symmetric loading Figure 3.42 Crosssectional dimensions for W 36 x 300 Ibeam section Figure 3.43 Buckling of a bar with hinged ends Figure 3.44 Bicycle frame structure Chapter 04 Figure 4.1 Examples of onedimensional heat conduction problems: (a) heat conduction in a thin long rod; (b) a furnace wall with dimensions in die y and z directions much greater than the thickness in the x direction Figure 4.2 Energy balance in an infinitesimal volume Figure 4.3 Onedimensional heat conduction of a long wire Figure 4.4 Finite elements for onedimensional heat conduction problem Figure 4.5 Balance in heat flow at node 2 Figure 4.6 Finite elements for onedimensional heat conduction problem Figure 4.7 Network of heat conduction elements Figure 4.8 Heat transfer problem for insulated wall Figure 4.9 Finite element approximation of die wall Figure 4.10 Temperature distribution along the wall thickness Figure 4.11 Heat transfer of a diermal protection system for a space vehicle Figure 4.12 Finite element model of the thermal protection system Figure 4.13 Temperature distribution in die diermal protection system Figure 4.14 Finite element approximation of the furnace wall Figure 4.15 Heat transfer problem of an insulated wall Figure 4.16 Finite element approximation of the furnace wallFigure 4.17 Heat conduction and convection in a long rod Figure 4.18 Heat flow through a thin fin and finite element model Figure 4.19 Temperature distribution in a thin fin Figure 4.20 Twodimensional heat transfer analysis domain Figure 4.21 Energy balance in an infinitesimal element Figure 4.22 3node triangular element Figure 4.23 Plot of linear shape function for triangular element Figure 4.24 Linear shape functions for interpolation along edge Figure 4.25 Heat conduction example Figure 4.26 Finite element mesh for heat conduction analysis Figure 4.27 Finite element model for slab with pipes: (a) periodicity and symmetry, (b) model Figure 4.28 Temperature distribution in the slab Figure 4.29 Heat flux components in the slab Chapter 05 Figure 5.1 Surface traction acting on a plane at a point Figure 5.2 Equilibrium of a uniaxial bar under axial force Figure 5.3 Normal and shear stresses at a point P Figure 5.4 Stress components in a Cartesian coordinate system Figure 5.5 Surface traction and stress components acting on faces of an infinitesimal tetrahedron, at a given point P Figure 5.6 Equilibrium of a square element subjected to shear stresses Figure 5.7 Coordinate transformation of stress Figure 5.8 Coordinate transformation of example 5.6 Figure 5.9 Maximum shear stress Figure 5.10 Deformation of line segments Figure 5.11 Deformation in the principal directions Figure 5.12 Uniaxial tension test Figure 5.13 Stressstrain diagram for a typical ductile material in tension Figure 5.14 Stress variations in infinitesimal components Figure 5.15 Traction boundary condition of a plane solidFigure 5.16 Boundary value problem Figure 5.17 Cantilever beam bending problem Figure 5.18 A plane solid under the distributed load {Tv Ty} on the traction boundary Sj Figure 5.19 Material failure due to relative sliding of atomic planes Figure 5.20 Stress-strain curve and the strain energy Figure 5.21 Failure envelope of the distortion energy theory Figure 5.22 Failure envelope of the maximum shear stress theory Figure 5.23 Failure envelope of the maximum principal stress theory Figure 5.24 Bracket structure Chapter 06 Figure 6.1 Thin plate with inplane applied forces Figure 6.2 Dam structure with plane strain assumption Figure 6.3 Constant strain triangular (CST) element Figure 6.4 Interelement displacement compatibility of constant strain triangular element Figure 6.5 Interpolation of displacements in triangular elements Figure 6.6 Applied surface traction along edge 12 Figure 6.7 Cantilevered plate Figure 6.8 Four-node rectangular element Figure 6.9 Fournode rectangular element Figure 6.10 Threedimensional surface plots of shape functions for a rectangular element; (a)JV^y), (b) N^x^ Figure 6.11 A square element under a simple shear condition Figure 6.12 Simple shear deformation of a square element Figure 6.13 A square element under pure bending condition Figure 6.14 Pure bending deformation of a square element Figure 6.15 Axisymmetric geometry; (a) revolved geometry, (b) section- plane of deformation Figure 6.16 Circumferential strain due to radial displacement Figure 6.17 Triangular axisymmetric element; (a) axisymmetric model of ring, (b)element e Figure 6.18 Beam model using plane stress CST elements Figure 6.19 Beam deflection computed using CST elements Figure 6.20 Computed normal strain component without smoothing Figure 6.21 Normal stress component after smoothing Figure 6.22 Thickwalled cylinder; (a) crosssection, (b) plane strain model, (c) axisymmetric model Figure 6.23 Comparison of results using plane strain and axisymmetric models for the thickwalled cylinder; (a) displacement magnitude with plane strain model, (b) displacement magnitude with axisymmetric model, (c) von Mises stress with plane strain model, (d) von Mises stress with axisymmetric model Figure 6.24 Cantilever beam model Chapter 07 Figure 7.1 Onedimensional 2node linear isoparametric element Figure 7.2 3node quadratic isoparametric element Figure 7.3 Regular versus irregular quadratic element Figure 7.4 Mapping and interpolation for the regular element Figure 7.5 Irregular versus irregular quadratic element Figure 7.6 ID heat conduction model using 3node elements Figure 7.7 Four-node quadrilateral element for plane solids Figure 7.8 Mapping of a quadrilateral element Figure 7.9 Four-node quadrilateral element Figure 7.10 Isoparametric lines of a quadrilateral element Figure 7.11 An example of invalid mapping Figure 7.12 Recommended ranges of internal angles in a quadrilateral element Figure 7.13 Mapping of a rectangular element Figure 7.14 Gauss integration points in twodimensional parent elements Figure 7.15 Numerical integration of a square element Figure 7.16 Three rigidbody modes of plane solids Figure 7.17 Two extra zeroenergy modes of plane solids Figure 7.18 Polynomial triangleFigure 7.19 9node Lagrange element in parametric space Figure 7.20 8node serendipity element in parametric space Figure 7.21 Shape function for node 1 of a 4node element Figure 7.22 5node transition element Figure 7.23 Triangular element by collapsing a 4node quadrilateral Figure 7.24 Triangular element in physical space Figure 7.25 3node isoparametric triangular element Figure 7.26 Sixnode isoparametric triangular element Figure 7.27 Fournode isoparametric tetrahedral element Figure 7.28 Tennode isoparametric tetrahedral element Figure 7.29 Eightnode isoparametric hexahedral element Figure 7.30 Ushaped beam Figure 7.31 Plane stress model of Ushaped beam Figure 7.32 Deflection and stress distribution in Ushaped beam Figure 7.33 Plate with holes Figure 7.34 Pressure distribution p(0) for bearing load Figure 7.35 Finite element model of plate with holes Figure 7.36 Deflection (mm) due to uniform load versus bearing load Figure 7.37 von Mises stress (N/m^) due to uniform load versus bearing load Figure 7.38 Plate with normal forces Figure 7.39 A 3D bracket drawing Figure 7.40 A 3D bracket loads and boundary conditions Figure 7.41 hadaptive mesh refinement for 3D bracket Figure 7.42 Cantilever beam model Figure 7.43 Dimensions of torque arm model Chapter 08 Figure 8.1 Uniaxial bar element in dynamic analysis Figure 8.2 Lumped mass idealization of a uniaxial bar element Figure 8.3 Free vibration of ID springmass system Figure 8.4 Free vibration of ID massspring systemFigure 8.5 Vibration of a clampedfree bar modeled using two elements Figure 8.6 Free vibration of a dampedclamped beam using two beam elements Figure 8.7 Mode shapes of a clampedclamped beam of length 2 m Figure 8.8 Rigid bodies connected by springs Figure 8.9 A clampedfree uniaxial bar subjected to a tip force F(t) Figure 8.10 Tipdisplacement of a uniaxial bar in figure 8.9 using the central difference method. The quasistatic response is shown in a dashed line. Figure 8.11 Instability of the central finite difference method due to a large time step Figure 8.12 Equivalence of dynamic and static solution under slowly applied load Figure 8.13 Tip displacement of the uniaxial bar in figure 8.9 using the Newmark method: (a) At = 42 psec, and (b) At = 75 psec Figure 8.14 (Top) Inpact of a mass on a simply supported beam; (bottom) one element FE model of one half of the beam. Figure 8.15 Inpact response of a simply supported beam subjected to central inpact. The figure shows the inpact force history. The dotted line represents the approximate single DOF solution. Figure 8.16 Tip displacement of the uniaxial bar in figure 8.9 using the modal superposition method Figure 8.17 Inpact response of a beam in figure 8.15 obtained using the mode superposition method Figure 8.18 Onedimensional springmassdashpot element Figure 8.19 Tip displacement of a uniaxial bar in figure 8.9 using the central difference method when structural damping is included Figure 8.20 Tip displacement of a uniaxial bar in figure 8.9 using die Newmark method when structural damping is included Figure 8.21 Finite element models for beam modal analysis Figure 8.22 Tuning fork Figure 8.23 Finite element mesh for the tuning fork Figure 8.24 Mode shapes of the tuning fork with no boundary conditions Figure 8.25 Beam with a harmonic distributed load and clanped at both ends Figure 8.26 Beam with deflection at A and B due to load (a) Figure 8.27 Beam with deflection at A and B due to load (b) Figure 8.28 Elastic rod inpact problemFigure 8.29 Analytical solutions of elastic rod impact problem; (a) displacements and (b) stresses Figure 8.30 Stress history of elastic rod impact problem with explicit time integration (superconvergent solution) Figure 8.31 Stress history of element 10 of elastic rod inpact problem with different timestep sizes Figure 8.32 Stress history of elastic rod inpact problem with implicit time integration Chapter 09 Figure 9.1 Finite element analysis procedures Figure 9.2 Frame structure under a uniformly distributed load Figure 9.3 Plate with a hole under tension Figure 9.4 Stress concentration factor of plate with a hole Figure 9.5 Singularity in finite element model Figure 9.6 Solid model of plate with a hole Figure 9.7 Automatically generated elements in a plate with hole Figure 9.8 Bad quality elements Figure 9.9 Quick transition of element size Figure 9.10 Shrink plot of elements to find missing elements Figure 9.11 Error in element connection Figure 9.12 Finite element modeling using different element types Figure 9.13 Convergence of finite element analysis results Figure 9.14 Applying displacement boundary conditions at a hole in a plate Figure 9.15 Applying displacement boundary conditions on truss Figure 9.16 Concentrated and distributed forces in a finite element model Figure 9.17 Stress distribution due to concentrated force Figure 9.18 Applying a couple to different element types Figure 9.19 Modeling a shaft force using assumed pressure and bar elements Figure 9.20 Displacement and forces of the plate model Figure 9.21 Deformed shape of the plate model Figure 9.22 Contour plot of of the plate model (element size = 0.2 in) Figure 9.23 Contour plot of 0^ in the refined model (element size = 0.1 in)Figure 9.24 Averaging stresses at nodes Figure 9.25 Detail model of a wheel cover Figure 9.26 Mesh generation using mapping Figure 9.27 Mapped and free meshes Figure 9.28 Full-sized model of a plate with a hole Figure 9.29 An example of a symmetric model with a symmetric load Figure 9.30 Symmetric models of a plate with a hole Figure 9.31 Singularity in connecting a plane solid with a frame Figure 9.32 Connecting a plane solid with frame Figure 9.33 Modeling bolted joints Figure 9.34 Finite element models of stepped cantilevered beam Figure 9.35 Illustration of linear systems Figure 9.36 Structural linear systems Figure 9.37 Fatigue analysis of airplane wing structure Figure 9.38 A patch of quadrilateral elements Figure 9.39 Generalized patch test for constant (Jxx Figure 9.40 Patch test for bar elements Figure 9.41 Stresses at integration points versus nodeaverages stresses Figure 9.42 Converging to the exact solution with mesh refinement Figure 9.43 Design domain and boundary and loading condition for die bracket Chapter 10 Figure 10.1 Histogram of failure strengths and allowable strengdis Figure 10.2 Knockdown factor for the Bbasis allowable strength Figure 10.3 Cantilevered beam design Figure 10.4 Threebar truss for fully stressed design Figure 10.5 Sizing design variables for cross sections of bars and beams; (a) Solid circular cross section; (b) Rectangular cross section; (c) Circular tube; (d) Rectangular tube; (e) I-section Figure 10.6 Shape design variables in a plate widi a hole Figure 10.7 Design perturbation using isoparametric mapping method Figure 10.8 Parametric study plot for the cantilevered beamFigure 10.9 Influence of step size in the forward finite difference method Figure 10.10 Structural design optimization procedure Figure 10.11 Design parameters for beam cross section Figure 10.12 Design of a beer can Figure 10.13 Local and global minima of a function Figure 10.14 Graphical optimization of the beer can problem Figure 10.15 Minimum weight design of fourbar truss Figure 10.16 List of the submenu in Tools menu (Solver appears in Tools menu) Figure 10.17 Addin dialog box with installed Solver addin Figure 10.18 Excel worksheet for minimum weight design of the fourbar truss and Solver Parameters dialog box Figure 10.19 Add Constraint dialog box Figure 10.20 Solver Options dialog box Figure 10.21 Show Trial Solution dialog box Figure 10.22 Solver Results dialog box Figure 10.23 Answer Report worksheet Figure 10.24 Tenbar truss Figure 10.25 Geometry of a bracket (unit mm) Appendix Figure A.1 Threedimensional geometric vector Figure A.2 Illustration of vector product
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