目录 Preface 1 Fundamentals of Classical Plasticity 1.1 Stress 1.1.1 The Concept of Stress Components 1.1.2 Description of the Stress State 1.1.2.1 Stresses on an Arbitrary Inclined Plane 1.1.2.2 Stress Components on an Oblique Plane 1.1.2.3 Spe Stresses 1.1.2.4 Common Stress States 1.1.3 Stress Tensors and Deviatoric Stress Tensors 1.1.4 Mohr Stress Circles 1.1.4.1 Mohr Circles for a Two-DimensionaI Stress System 1.1.4.2 Mohr Circles for a Three-Dimensional Stress System 1.1.5 Equations of Force Equilibrium 1.2 Strain 1.2.1 Nominal Strain and True Strain 1.2.2 Strain Components as Functions of Infinitesimal Displacements 1.2.3 The Maximum Shear Strains and the Octahedral Strains 1.2.4 Strain Rates and Strain Rate Tensors 1.2.5 Incompressibility and Chief Deformation Types 1.3 Yield Criteria 1.3.1 The Concept of Yield Criterion 1.3.2 Tresca Yield Criterion 1.3.3 Mises Yield Criterion 1.3.4 Twin Shear Stress Yield Criterion 1.3.5 Yield Locus and Physical Concepts of Tresca， Mises， and Twin Shear Stress Yield Criteria 1.3.5.1 Interpretation of Tresca Yield Criterion 1.3.5.2 Interpretation of Twin Shear Stress Yield Criterion 1.3.5.3 Interpretation of Mises Yield Criterion 1.4 A General Yield Criterion 1.4.1 Representation of GeneraI Yield Criterion 1.4.2 Yield Surface and Physical Interpretation 1.4.3 Simplified Yield Criterion 1.5 Classical Theory about Plastic Stress-Strain Relation 1.5.1 Early Perception of Plastic Stress Strain Relations 1.5.2 Concept of the Gradient-Based Plasticity and Its Relation with Mises Yield Criterion 1.5.2.1 Concept of the Plastic Potential 1.5.2.2 Physical Interpretation of the Plastic Potential 1.5.2.3 Physical Interpretation of Mises Yield Function （Plastic Potential） 1.6 Effective Stress， Effective Strain， and Stress Type 1.6.1 Effective Stress 1.6.2 Effective Strain 1.6.3 Stress Type References 2 Experimental Research on Material Mechanical Properties under Uniaxial Tension 2.1 Stress-Strain Relationship of Strain-Strengthened Materials under Uniaxial Tensile Stress State 2.2 The Stress-Strain Relationship of the Strain-Rate-Hardened Materials in Uniaxial Tensile Tests 2.3 Stress-Strain Relationship in Uniaxial Tension during Coexistence of Strain Strengthening and Strain Rate Hardening 2.4 Bauschinger Effect 2.5 Tensile Tests for Automotive Deep-Drawing Steels and High-Strength Steels 2.5.1 Test Material and Experiment Scheme 2.5.2 True Stress-Strain Curves in Uniaxial Tension 2.5.3 Mechanical Property Parameters of Sheets 2.5.3.1 Strain-HardeningExponent n 2.5.3.2 Lankford Parameter R 2.5.3.3 Plane Anisotropic Exponent AR 2.5.3.4 Yield-to-Tensile Ratio σs/σb 2.5.3.5 Uniform Elongation δm 2.6 Tensile Tests on Mg-Alloys 2.7 Tension Tests on Ti-Alloys 2.7.1 Mechanical Properties of Ti-3AI-2.SV Ti-Alloy Tubes at High Temperatures 2.7.2 Strain Hardening of Ti-3A1-2.5 V Ti-Alloy in Deformation at High Temperatures References 3 Experimental Research on Mechanical Properties of Materials under Non-Uniaxial Loading Condition 3.1 P-p Experimental Results of Thin-Walled Tubes 3.1.1 Lode Experiment 3.1.2 P-p Experiments on Thin-Walled Tubes Made of Superplastic Materials 3.1.2.1 Experiment Materials and Specimens 3.1.2.2 Loading Methods 3.1.2.3 Experimental Results and Analysis 3.1.3 Experiments on Tubes Subjected to Internal Pressure and Axial Compressive Forces 3.1.3.1 Experimental Device 3.1.3.2 Material Properties 3.1.3.3 Experimental Results 4 Yield Criteria of Different Materials 5 Plastic Constitutive Relations of Materials 6 Description of Material Hardenability with Different Models 7 Sequential Correspondence Law between Stress and Strain Components and Its Application in Plastic Deformation Process 8 Stress and Strain Analysis and Experimental Research on Typical Axisymmetric Plane Stress-Forming Process 9 Shell and Tube Hydroforming 10 Bulk Forming 11 Sheet Forming Index
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