Thermomechanics & Infrared Imaging, Inverse Problem Methodologies and Mechanics of Additive & Advanced Manufactured Materials, Volume 7: Proceedings of the 2020 Annual Conference on Experimental and Applied Mechanics

Residual Stress, Thermomechanics & Infrared Imaging and Inverse Problems , Volume 7 of the Proceedings of the 2020 SEM Annual Conference & Exposition on Experimental and Applied Mechanics , the seventh volume of sseven from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of areas, including: Test Design and Inverse Method Algorithms Inverse Problems: Virtual Fields Method Residual Stresses: Measurement, Uncertainty & Validation Residual Stresses: Eigenvalues, Modeling, & Crack Growth Material Characterizations Using Thermography Fatigue, Damage & Fracture Evaluation Using Infrared Thermography Preface 6 Contents 8 Chapter 1: Visualization and Simulation of Particle Rearrangement and Deformation During Powder Compaction 10 1.1 Introduction 10 1.2 Granular Materials 11 1.3 Compression Apparatus with Optical Access 11 1.4 Image Processing for Powder Bed Deformation 14 1.5 Simulation by DEM 15 1.6 Conclusion 16 References 16 Chapter 2: Full-Field Analysis of Strain-Induced Crystallization in Natural Rubber 18 2.1 Introduction 18 2.2 Crystallinity Measurement from Heat Source Reconstruction 18 2.3 Experimental Setup 20 2.4 Results 20 2.5 Conclusion 20 References 20 Chapter 3: Grain Size and Mechanical Property of Magnesium Experienced Rolling and Post Heat Treatment 22 3.1 Introduction 22 3.2 Experimental 23 3.3 Results and Discussions 23 3.4 Conclusion 24 References 27 Chapter 4: Evaluation and Comparison of the Mechanical Performance of Adhesively Bonded and Self-Piercing Riveted Aluminum Joints Under Tension Loading 29 4.1 Introduction and Background 29 4.2 Materials and Methods 30 4.2.1 Materials 30 4.3 Results and Discussion 31 4.4 Conclusion 34 References 34 Chapter 5: Dynamic Strain Aging in Additively Manufactured Steel at Elevated Temperatures 35 5.1 Introduction 35 5.2 Results 35 References 40 Chapter 6: Material Characterization of 3D Printed Components with Different Layup Orientation 41 6.1 Introduction 41 6.2 Experiemental Procedure 42 6.3 Experimental Results 45 6.4 Fatigue Analysis 48 6.5 Conclusion 49 References 50 Chapter 7: Strain Controlled Tensile Test Through High Rate Thermal Expansion 51 7.1 Introduction 51 7.2 Analysis 52 7.3 Conclusion 54 Chapter 8: High Temperature Welded Thermocouple Preparation and Calibration 55 8.1 Introduction 55 8.2 General Procedure 56 8.3 Experimental Design 56 8.4 Results 57 8.5 Conclusions 60 Reference 60 Chapter 9: Analytical Methods to Understand Deformation Mechanics in Additively Manufactured Metals 61 9.1 Introduction 61 9.2 Background 62 9.3 Analysis 62 9.4 Conclusion 62 References 63 Chapter 10: Infrared Thermography Applied to the Assessment of Fatigue Initiation 65 10.1 Introduction 65 10.2 Experimental Campaign 66 10.3 IR Uniaxial Quasi-Static Method 68 10.4 IR Biaxial Quasi-Static Method 68 10.5 Results: Uniaxial Tests 70 10.6 Results: Biaxial Tests 71 10.7 Conclusions 73 References 74 Chapter 11: DIC-IR Analysis of Transient Thermal Stresses 75 11.1 Introduction 75 11.2 Experimental Set-up and Procedure 76 11.3 Results 76 11.3.1 Thermal Expansion Coefficient Determination 76 11.3.2 Transient Problem: Temperature 77 11.3.3 Transient Problem: Strains 78 11.4 Conclusion 79 Appendices 81 References 81 Chapter 12: The Role of Extraneous Oxygen in the Formation of Oxide Inclusions in 316L Stainless Steel Manufactured by Laser Powder Bed Fusion 82 12.1 Introduction 82 12.2 Materials and Methods 83 12.3 Results and Discussion 84 12.4 Conclusion 85 References 86 Chapter 13: Evolution and Impact of Oxygen Inclusions in 316L Stainless Steel Manufactured by Laser Powder Bed Fusion 88 13.1 Introduction 88 13.2 Materials and Method 89 13.3 Results and Discussion 89 13.4 Conclusion 90 References 93 Chapter 14: Implementing a Commercially Available Self-Locking Screw System in Additively Manufactured Medical Implants 94 14.1 Introduction 94 14.2 Materials and Methods 95 14.3 Analysis 98 14.4 Conclusion 98 References 99 Chapter 15: Experimental Validation and Noise Assessment of the Thermal-VFM 100 15.1 Introduction 100 15.2 Identification Method 100 15.3 Experimental Set-up 101 15.4 Results and Discussions 102 15.5 Conclusion 105 References 105 Chapter 16: Role of Glass Transition Temperature on Energy Absorption Mechanisms in High Strain Rate Impact Performance of Fiber Reinforced Composites 106 16.1 Introduction 106 16.2 Experimental 107 16.2.1 Materials and Fabrication 107 16.2.2 Thermomechanical Characterization 107 16.2.3 Impact Measurements 108 16.3 Results 108 16.3.1 Composite Dynamic Mechanical Analysis 108 16.3.2 Impact Performance Results 109 16.4 Conclusion 111 References 111 __Residual Stress, Thermomechanics & Infrared Imaging and Inverse Problems____Proceedings of the 2020 SEM Annual Conference & Exposition on Experimental and Applied Mechanics__Test Design and Inverse Method Algorithms Residual Stresses: Measurement, Uncertainty & Validation Material Characterizations Using Thermography