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Table of Contents
Intro; Contents; About the Editor; Introduction; 1 The Origins of the Hopkinson Bar Technique; Acknowledgements; Appendix; References; 2 Tensile Testing Using the Kolsky-Hopkinson Bar Machine; 2.1 Tension Tests; 2.2 Review of One-Dimensional Elastic Wave Propagation Theory; 2.3 Dynamic Tension Tests with Split-Hopkinson Bars; 2.3.1 Introductory Remarks; 2.3.2 Tension Testing in a Split-Hopkinson Pressure Bar (SHPB) System; 2.3.3 Approaches for Direct Tensioning of the Sample; 2.4 Split-Hopkinson Tension Bar Loaded by Direct Tension; 2.4.1 Bar, Mechanical Devices and Instrumentation.
2.4.2 Pre-stretching of Input Bar and Release of Stress Wave2.4.3 Dispersion; 2.4.4 Conventional Response Analysis; 2.4.5 Correction of Measured Strains; 2.4.6 True Stress and Plastic Strain; 2.5 Direct Measurement of Deformation; 2.5.1 Introduction Motivation; 2.5.2 Digital Image Correlation (DIC); 2.5.3 Contour Tracing; 2.6 SHTB Testing at Different Temperatures; 2.6.1 Motivation; 2.6.2 SHTB Testing at High Temperatures; 2.6.3 SHTB Testing at Low Temperatures; 2.6.4 Temperature Measurement; 2.7 Summary; Acknowledgements; References; 3 Shear Testing Using the Kolsky-Hopkinson Bar Machine.
3.1 Why Shear Tests?3.2 Shear Deformation Modes; 3.3 Hopkinson Shear Testing of Sheet Materials; 3.3.1 Simple Shear Tests; 3.3.2 Tests with Optimised Sample Geometries; 3.3.3 Example: Shear Testing of Ti6Al4V Sheet; 3.4 Hopkinson Shear Testing of Bulk Materials; 3.4.1 Hopkinson Torsion Tests; 3.4.2 Example: Torsion Testing of Ti6Al4V; 3.4.3 Compression of Hat-Shaped Samples; 3.4.4 Tests with Purpose Designed Sample Geometries; 3.5 Shear Strain Formulations; References; 4 Dynamic Brazilian Test Using the Kolsky-Hopkinson Bar Machine; 4.1 Introduction; 4.2 Principle of the Brazilian Disc Test.
4.3 Digital Image Correlation Method and High-Speed Photography4.4 Experimentation; 4.4.1 Materials and Sample Preparation; 4.4.2 Experimental Setup; 4.5 Dynamic Deformation and Failure Analysis; 4.5.1 Dynamic Deformation of PMMA; 4.5.2 Dynamic Deformation of Al2O3 Ceramic; 4.5.3 Dynamic Deformation of Granite; 4.6 Determination of the Dynamic Tensile Strength; 4.7 Concluding Remark and Perspective; References; 5 Comparative Study of the Dynamic Fracture Toughness Determination of Brittle Materials Using the Kolsky-Hopkinson Bar Machine; 5.1 Introduction.
5.2 Testing Principle and Experimental Setup5.2.1 Flatted Brazilian Disc (FBD) Test; 5.2.2 Notched Semi-circular Brazilian (NSCB) Test; 5.2.3 Three-Point Bending (TPB) Test; 5.2.4 Sample Preparation and Experimental Setup; 5.3 Dynamic Deformation and Failure Analysis; 5.4 Determination of the Dynamic Fracture Toughness of Brittle Materials; 5.5 Micro Morphologic Analysis on the Fracture; 5.6 Discussion and Conclusion; References; 6 Wave Dispersion in Kolsky-Hopkinson Bar Machine; 6.1 Introduction; 6.2 Analytical Analysis; 6.2.1 Pochhammer-Chree Equation for an Infinite Viscoelastic Rod.
2.4.2 Pre-stretching of Input Bar and Release of Stress Wave2.4.3 Dispersion; 2.4.4 Conventional Response Analysis; 2.4.5 Correction of Measured Strains; 2.4.6 True Stress and Plastic Strain; 2.5 Direct Measurement of Deformation; 2.5.1 Introduction Motivation; 2.5.2 Digital Image Correlation (DIC); 2.5.3 Contour Tracing; 2.6 SHTB Testing at Different Temperatures; 2.6.1 Motivation; 2.6.2 SHTB Testing at High Temperatures; 2.6.3 SHTB Testing at Low Temperatures; 2.6.4 Temperature Measurement; 2.7 Summary; Acknowledgements; References; 3 Shear Testing Using the Kolsky-Hopkinson Bar Machine.
3.1 Why Shear Tests?3.2 Shear Deformation Modes; 3.3 Hopkinson Shear Testing of Sheet Materials; 3.3.1 Simple Shear Tests; 3.3.2 Tests with Optimised Sample Geometries; 3.3.3 Example: Shear Testing of Ti6Al4V Sheet; 3.4 Hopkinson Shear Testing of Bulk Materials; 3.4.1 Hopkinson Torsion Tests; 3.4.2 Example: Torsion Testing of Ti6Al4V; 3.4.3 Compression of Hat-Shaped Samples; 3.4.4 Tests with Purpose Designed Sample Geometries; 3.5 Shear Strain Formulations; References; 4 Dynamic Brazilian Test Using the Kolsky-Hopkinson Bar Machine; 4.1 Introduction; 4.2 Principle of the Brazilian Disc Test.
4.3 Digital Image Correlation Method and High-Speed Photography4.4 Experimentation; 4.4.1 Materials and Sample Preparation; 4.4.2 Experimental Setup; 4.5 Dynamic Deformation and Failure Analysis; 4.5.1 Dynamic Deformation of PMMA; 4.5.2 Dynamic Deformation of Al2O3 Ceramic; 4.5.3 Dynamic Deformation of Granite; 4.6 Determination of the Dynamic Tensile Strength; 4.7 Concluding Remark and Perspective; References; 5 Comparative Study of the Dynamic Fracture Toughness Determination of Brittle Materials Using the Kolsky-Hopkinson Bar Machine; 5.1 Introduction.
5.2 Testing Principle and Experimental Setup5.2.1 Flatted Brazilian Disc (FBD) Test; 5.2.2 Notched Semi-circular Brazilian (NSCB) Test; 5.2.3 Three-Point Bending (TPB) Test; 5.2.4 Sample Preparation and Experimental Setup; 5.3 Dynamic Deformation and Failure Analysis; 5.4 Determination of the Dynamic Fracture Toughness of Brittle Materials; 5.5 Micro Morphologic Analysis on the Fracture; 5.6 Discussion and Conclusion; References; 6 Wave Dispersion in Kolsky-Hopkinson Bar Machine; 6.1 Introduction; 6.2 Analytical Analysis; 6.2.1 Pochhammer-Chree Equation for an Infinite Viscoelastic Rod.