1 Introduction -- 1.1 Background -- 1.2 The Engineering Design Process -- 1.3 Illustration: A Simply Supported Beam -- 1.4 Wish List for Structural Optimization -- 1.5 Finite Element Analysis (FEA) -- 1.6 References -- 2 Basic Evolutionary Structural Optimization -- 2.1 Introduction -- 2.2 Material Removal Based on Stress Level -- 2.3 Example of Two-Bar Frame -- 2.4 Examples of Michell Type Structures -- 2.5 Structures with Uniform Surface Stress -- 2.6 Conclusion -- 2.7 References -- 3 ESO for Multiple Load Cases and Multiple Support Environments -- 3.1 Introduction -- 3.2 ESO for Multiple Load Cases -- 3.3 ESO for Multiple Support Environments -- 3.4 Examples of ESO for Multiple Load Cases -- 3.5 Examples of ESO for Multiple Support Environments -- 3.6 Conclusion -- 3.7 References -- 4 Structures with Stiffness or Displacement Constraints -- 4.1 Overall Stiffness Constraint -- 4.2 Displacement Constraint -- 4.3 Examples of Optimization with a Displacement Constraint -- 4.4 Constraint on the Difference of Two Displacements -- 4.5 Multiple Displacement Constraints -- 4.6 Example of Optimization with Multiple Displacement Constraints -- 4.7 Minimizing Weight of Plate by Reducing Element Thickness -- 4.8 Example of Least Weight Design of Plate with Variable Thicknesses -- 4.9 Keeping Weight Constant Through Material Shifting -- 4.10 Example of Optimal Design of Plate Subject to Constant Weight -- 4.11 Conclusion -- 4.12 References -- 5 Frequency Optimization -- 5.1 Introduction -- 5.2 Sensitivity Number for Frequency -- 5.3 Evolutionary Procedures for Frequency Optimization -- 5.4 Examples -- 5.5 Conclusion -- 5.6 References -- 6 Optimization Against Buckling -- 6.1 Introduction -- 6.2 Sensitivity Number for Buckling Load -- 6.3 Bimodal and Multimodal Problems -- 6.4 Evolutionary Procedure for Buckling Optimization -- 6.5 Example of Column Optimization -- 6.6 Example of Frame Optimization -- 6.7 Plate Optimization -- 6.8 Conclusion -- 6.9 References -- 7 ESO for Pin- and Rigid-Jointed Frames -- 7.1 Introduction -- 7.2 ESO Algorithm for Pin-Jointed Frames -- 7.3 ESO Algorithm for Rigid-Jointed Frames -- 7.4 Examples of Size Optimization of Pin-Jointed Frames -- 7.5 Topology Optimization of Pin-Jointed Frames -- 7.6 Size Optimization for Beams and Rigid-Jointed Frames -- 7.7 Conclusion -- 7.8 References -- 7.9 Appendix -- 8 ESO for Shape Optimization and the Reduction of Stress Concentrations -- 8.1 Introduction -- 8.2 ESO for Shape Optimization -- 8.3 Examples -- 8.4 Conclusion -- 9 ESO Computer Program Evolve97 -- 9.1 Introduction -- 9.2 System Requirements and Installation of Evolve97 -- 9.3 Overview of the Evolve97 Interface -- 9.4 To Get Started -- 9.5 Evolve97 Data Storage Files -- 9.6 Error Messages -- Author Index.