The technological field of defects, and more appropriately, avoidance of them, is very current in perhaps all sectors of the manufacturing industry. This is particularly important to reduce/minimize waste everywhere to address lean production procedures. The recent advances in finite plasticity and visioplasticity, damage modelling, instability theories, fracture modelling, computer numerical techniques and process simulation etc. offer new approaches and tools for defect prediction, analyses and guidelines for designing components to be manufactured by traditional and emerging process technologies. This volume contains contributions from well known researchers and experts in the field presenting an up-to-date overview of advances in this area. Subjects covered include: micro- and macro-scale observation of defects; localization and instability analysis; damage modelling and fracture criteria; defect prediction methods; design considerations to avoid defects.
Inhaltsverzeichnis
1;Cover;1 2;Preface;5 3;Dedication;7 4;Contents;9 5;Chapter 1. Some Comments on the Structure of Technology of Plasticity in R&D and Production;11 6;Chapter 2. James Nasmyth (18081890): The Steam Hammer and the Mechanics of Vee-anvil Forging;27 7;Chapter 3. Modeling Dynamic Strain Localization in Inelastic Solids;69 8;Chapter 4. Void Growth under Triaxial Stress State and its Influence on Sheet Metal Forming Limits;85 9;Chapter 5. The Prediction of Necking and Wrinkles in Deep Drawing Processes Using the FEM;101 10;Chapter 6. Constitutive Models for Microvoid Nucleation, Growth and Coalescence in Elastoplasticity, Finite Element Reference Modelling;117 11;Chapter 7. Theoretical and Numerical Modelling of Isotropic or Anisotropic Ductile Damage in Metal Forming Processes;133 12;Chapter 8. Research on Forging Processes for Production a + ß Titanium Alloy TC11 Disks;151 13;Chapter 9. Modelling of Fracture Initiation in Metalforming Processes;165 14;Chapter 10. Formability Determination for Production Control;181 15;Chapter 11. Design of Experiments, a Statistical Method to Analyse Sheet Metal Forming Defects Effectively;197 16;Chapter 12. Formability, Damage and Corrosion Resistance of Coated Steel Sheets;213 17;Chapter 13. Model of Metal Fracture in Cold Deformation and Ductivity Restoration;229 18;Chapter 14. Prediction of Necking in 3-D Sheet Metal Forming Processes with Finite Element Simulation;245 19;Chapter 15. Deformability versus Fracture Limit Diagrams;261 20;Chapter 16. Prediction of Geometrical Defects in Sheet Metal Forming Processes by Semi-Implicit FEM;275 21;Chapter 17. Evolution of Structural Anisotropy in Metal Forming Processes;293 22;Chapter 18. Computer Aided Design of Optimised Forgings;307 23;Chapter 19. Defects in Thermal Sprayed and Vapour Deposited Thick and Thin Hard-wearing Coatings;321 24;Chapter 20. A Study of Workability Criteria in Bulk Forming Processes;343 25;Chapter 21. Degradation of Metal Matrix Composite under Plastic Straining;369
26;Chapter 22. Crack Prevention and Increase of Workability of Brittle Materials by Cold Extrusion;383 27;Chapter 23. A Database for some Physical Defects in Metal Forming Processes;397 28;Chapter 24. Split Ends and Central Burst Defects in Rolling;411 29;Chapter 25. Form-Filling in Forging and Section-Rolling;427
