Preface Chapter 1 Introduction 1.1 Research Background 1.2 Literature and Research Progress 1.2.1 Steel Cutting with Flame Heating 1.2.2 Plate Bending with High-Frequency Induction Heating 1.2.3 Welding Distortion Prediction in Shipbuilding 1.3 Research Content Reference Chapter 2 Fundamentals of FE Computation 2.1 Non-linear Thermal Elastic-Plastic FE Computation 2.1.1 Transient Thermal Analysis 2.1.2 Mechanical Analysis 2.1.3 Fast Computation Techniques 2.2 Theory of Inherent Strain and Deformation 2.2.1 Inherent Strain Theory 2.2.2 Inherent Deformation Theory 2.3 Interface Element 2.4 Elastic Buckling Theory 2.4.1 Finite Strain Theory 2.4.2 Eigenvalue Analysis 2.5 Tendon Force and Its Evaluation 2.5.1 Tendon Force Evaluation with Theoretical Analysis 2.5.2 Tendon Force Evaluation by Computed Results 2.6 Conclusions Reference Chapter 3 Investigation on Thick-Plate Cutting of High-Strength Steel 3.1 Research on Thermal Source Model of Oxygen and Acetylene cutting 3.1.1 Thermal Source Model 3.1.2 Determination of Thermal-Flow Distribution Parameters 3.1.3 Quasi-stable Temperature Field Under the Effect of Thermal Sources 3.1.4 Determination of Parameters in Thermal Source Model 3.2 Simulation of Rack Oxygen-Acetylene Cutting 3.2.1 Material Parameters of Temperature Properties 3.2.2 Finite Element Model of Rack 3.2.3 Calculation of Stress and Strain in Thermal Rack Cutting 3.3 Optimization of Cutting Process Parameters 3.4 Conclusions Reference Chapter 4 Hull Plate Bending with Induction Heating 4.1 Experimental Procedure and Measurement 4.1.1 Temperature Measurement During Induction Heating 4.1.2 Measurement of Bending Deformation 4.2 Measurement and Computational Analysis of Saddle Plate 4.2.1 Thermal Elastic-Plastic FE Computation 4.2.2 Evaluation of Bending Moment 4.2.3 Elastic FE Computation 4.3 Measurement and Computational Analysis of Sail Plate 4.3.1 TEP FE Analysis for Sail-Shape Plate 4.3.2 Elastic FE Analysis for Sail-Shape Plate
4.4 Conclusions Reference Chapter 5 Out-of-plane Welding Distortion Prediction for Typical Welded Joints and Ship Structures 5.1 Welding Distortion of Typical Fillet Welding 5.1.1 Experimental Procedure and Measurement 5.1.2 Thermal Elastic-Plastic FE Analysis 5.1.3 FE Computation on Influence of Lateral Stiffener 5.1.4 Inherent Deformation Evaluation 5.2 Welding Distortion of Stiffened Welded Structure 5.2.1 Fabrication of Orthogonal Stiffened Welded Structure 5.2.2 Elastic FE Analysis with Shell-Element Model 5.3 Conclusions Reference Chapter 6 Application of Computational Welding Mechanics for Accurate Fabrication of Ship Structure 6.1 Welding Distortion Reduction for Hatch Coaming Production 6.1.1 Experimental Procedure 6.1.2 Evaluation of Inherent Deformation of Fillet Welded Joints 6.1.3 Prediction of Welding Distortion of Hatch Coaming Using Elastic FE Analysis 6.2 Investigation on Welding Induced Buckling for Ship Panel Fabrication 6.2.1 Experimental Procedures and Measurement 6.2.2 Thermal Elastic-Plastic FE Computation of Fillet Welding 6.2.3 Evaluation of Welding Inherent Deformations 6.2.4 Elastic FE Analysis with Inherent Deformations 6.2.5 Techniques for Welding Buckling Prevention 6.3 Application of Accurate Fabrication for Container Ship 6.3.1 Examined Structures and Welding Experiments 6.3.2 Creation of Inherent Deformation Database 6.3.3 Prediction and Validation of Out-of-plane Welding Distortion 6.3.4 Influence of Welding Sequence on Precision Fabrication 6.3.5 X Groove Optimization of Butt Welded Joint with Thick Plates 6.4 Conclusions Reference Chapter 7 Application of Accurate Fabrication of Offshore Structure 7.1 Welding Distortion Prediction and Mitigation Practice of Cylindrical Leg Structure 7.1.1 Rack-cylinder Welding Experiment and Measurement 7.1.2 Welding Distortion Prediction with Efficient TEP FE Computation 7.1.3 Welding Distortion Mitigation with Bead-on-plate Techniques 7.2 Welding Distortion Prediction and Mitigation Practice of Cantilever Beam Structure 7.2.1 Establishment of Inherent Deformation Database 7.2.2 Welding Distortion Prediction with Elastic FE Analysis 7.2.3 Mitigation Implementation with Practical Techniques 7.3 Conclusions Reference
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