1.5 Trends and Challenges in Deformation-Based Manufacturing1.5.1 Current Trends of Deformation-Based Manufacturing; 1.5.2 Scientific and Technological Challenges in Deformation-Based Manufacturing; 1.6 Summary; References; 2 Deformation Inhomogeneity; 2.1 Introduction; 2.2 Definition of Deformation Inhomogeneity; 2.3 Root Causes of Inhomogeneous Deformation; 2.3.1 Microstructure Inhomogeneity; 2.3.2 Complicated Loading Conditions; 2.3.2.1 Strain Path (Strain Routine); 2.3.2.2 Tool/Billet Constraints; 2.3.2.3 Hardening and Softening Effects; 2.4 Modeling of Inhomogeneous Deformation

2.4.1 Constitutive Modeling2.4.1.1 Physical Deconstruction of the Yield Functions; 2.4.1.2 Explicit and Implicit Modeling Evolution of Plasticity; 2.4.1.3 Unified Continuum-Based Discontinuous Framework; 2.4.2 Friction Modeling; 2.4.2.1 Phenomenologically Based Modeling; 2.4.2.2 Physically Based Modeling; 2.4.2.3 Friction Modeling in Micro/Meso-Forming; 2.5 Control of Inhomogeneous Deformation; 2.5.1 Essential of Neutral Layer Shifting; 2.5.2 Neutral Layer Reconstruction-Based Innovative Process Design; 2.6 Summary; References; 3 Damage Evolution and Ductile Fracture; 3.1 Introduction

3.2 Mechanism of Damage Evolution and Ductile Fracture3.2.1 Tension-Induced Void Initiation, Growth, and Coalescence; 3.2.2 Shear-Stress-Induced Damage and Ductile Fracture; 3.2.3 Damage Caused by a Mixture of Tension and Shear Stress; 3.3 Modeling and Prediction; 3.3.1 Ductile Fracture Criteria; 3.3.1.1 Coupled Ductile Fracture Criteria; 3.3.1.1.1 GTN-Type Ductile Fracture Criteria; 3.3.1.1.2 Continuum Damage Mechanics-Based Lemaitre Criteria; 3.3.1.2 Uncoupled Ductile Fracture Criteria; 3.3.2 Failure Diagrams; 3.3.2.1 Necking-Based Failure Diagram; 3.3.2.1.1 Forming Limit Diagram

3.3.2.1.2 Extension of the Forming Limit Diagram3.3.2.2 Fracture-Based Failure Diagrams; 3.3.3 Calibration Method for the Model Parameters; 3.3.3.1 Experiment-Based Method; 3.3.3.1.1 Direct Experiment Method; 3.3.3.1.2 Indirect Experiment Method; 3.3.3.2 Inverse Method; 3.4 Control of Damage Evolution and Ductile Fracture; 3.4.1 Materials Selection-Based Damage Control; 3.4.2 Die Design-Based Damage Control; 3.4.3 Process-Optimization-Based Damage Control; 3.5 Case Studies; 3.5.1 Calibration of the Ductile Fracture Models; 3.5.1.1 Calibration of the GTN-Based Anisotropic Damage Model

Deformation Based Processing of Materials: Behavior, Performance, Modeling and Control focuses on deformation based process behaviors and process performance in terms of the quality of the needed shape, geometries, and the requested properties of the deformed products. In addition, modelling and simulation is covered to create an in-depth and epistemological understanding of the process. Other topics discussed include ways to efficiently reduce or avoid defects and effectively improve the quality of deformed parts. The book is ideal as a technical document, but also serves as scientific literature for engineers, scientists, academics, research students and management professionals involved in deformation based materials processing

Front Cover; Deformation-Based Processing of Materials; Copyright Page; Contents; Preface; Acknowledgments; 1 Introduction to Deformation-Based Manufacturing; 1.1 Introduction; 1.2 Deformation of Materials; 1.2.1 Physical Mechanisms of Deformation; 1.2.2 Roles in Shape Forming and Properties Tailoring in Deformation; 1.3 Deformation-Based Processing of Materials; 1.3.1 Process Classification; 1.3.2 Process Behavior and Performance; 1.4 Deformation-Induced Defects; 1.4.1 Deformation Heterogeneity; 1.4.2 Generic Classification of Deformation-Induced Defects