Advancement of Optical Methods & Digital Image Correlation in Experimental Mechanics: Proceedings of the 2020 Annual Conference on Experimental and ... Society for Experimental Mechanics Series)

Preface
Contents
1 Diagnosis of Deformation Stages with Optical Interferometric Technique and Comprehensive Theory of Deformation and Fracture
	1.1 Introduction
	1.2 Theoretical Background
	1.3 Results and Discussions
	1.4 Conclusion
	References
2 Non-contact Measurement of Strains Using Two Orthogonal Sets of Twin “Blue” Lasers
	2.1 Introduction
	2.2 Experimental Design
		2.2.1 Design of CNL's Online Biaxial Burst Test Facility
		2.2.2 Test Specimens
		2.2.3 Test Procedure
	2.3 Analysis
		2.3.1 Example of Analysis of a Fuel Sheath Biaxial Burst Specimen
		2.3.2 Example of Analysis of a Dog-Bone Specimen
	2.4 Conclusion
	References
3 Experimental Observations on the Fracture of Metals
	3.1 Introduction
	3.2 Analysis of the Displacement Field of a Tensile Specimen
	3.3 Scale Dependence of the Experimental Observations of the Transitions to Plasticity and Fracture
	3.4 Transitions to Plasticity
	3.5 Signals Recorded by the Camera
	3.6 Transition from Onset of Plasticity to Fracture
	3.7 Instability of the Plastic Flow
	3.8 Analysis of the Process of Propagation of the Plastic Instability
	3.9 Fracture Process
	3.10 Changes in Depth Produced by the Onset of the Plastic Instability
	3.11 Propagation Velocity of the Plastic Wave Front
	3.12 Interpretation of the Optical Signal and Consequences of this Analysis
	3.13 Discussion and Conclusions
	References
4 A Digital Laser Speckle Technique for Generating Slope, Curvature, and Deflection Contours of Bent Plates
	4.1 Introduction
	4.2 Experimental Procedures
	4.3 Principle of the Method
	4.4 Results
	4.5 Conclusion and Discussion
	References
5 Holography and Holographic Interferometry via Photopolymer Film
	5.1 Introduction
	5.2 Experimental Procedures
	5.3 Principle of the Method
	5.4 Results
	5.5 Conclusion and Discussion
	References
6 Evaluating Stresses from Measured Strains in Viscoelastic Body Using Numerical Laplace Transformation
	6.1 Introduction
	6.2 Objective
	6.3 Constitutive Equation of Viscoelasticity
	6.4 Numerical Laplace Transformation Using FFT
	6.5 Numerical Laplace Transformation Considering the Nature of FFT
	6.6 Computing Stresses Using Proposed Method
	6.7 Conclusions
	References
7 Evaluation of the Influence of Water Absorptivity on the Properties of CFRP Cylinder Materials by SHPB Impact Compression Test
	7.1 Background
	7.2 Specimen
	7.3 Experiment
	7.4 Results and Discussion
	7.5 Conclusion
	References
8 Speckling and Testing with DIC at Microscales
	8.1 Introduction
	8.2 Apparatus
	8.3 Specimen Preparation
	8.4 DIC Results
	8.5 Conclusion
	References
9 Perspective Compensation of 2D-DIC Measurements by Combination with Speckle Imaging
	9.1 Introduction
	9.2 Basics of Speckle Imaging
	9.3 Research Objective
	9.4 Speckle Pattern Characterization
	9.5 Speckle Size vs. Aperture Size vs. Defocus
	9.6 Discussion
	9.7 Conclusion
	References
10 Holographic Measurement of Semi-transparent Tympanic Membrane Shape Using Multiple Angle Illuminations
	10.1 Introduction
	10.2 Methods
	10.3 Results
	10.4 Conclusion
	References
11 Characterization of Interface Debonding Behavior Utilizing an Embedded Digital Image Correlation Scheme
	11.1 Introduction
	11.2 Experimental Methods
		11.2.1 Sample Fabrication
		11.2.2 Mechanical Testing
	11.3 Data Analysis and Results
	11.4 Conclusion
	References
12 Preliminary Characterization of a Plastic Piezoelectric Motor Stator Using High-Speed Digital Holographic Interferometry
	12.1 Introduction
	12.2 Methodology
	12.3 Experimental Results
	12.4 Conclusion and Future Work
	References
13 DIC Measurement of Anisotropy for Plastically Deformed Thermoplastic
	13.1 Introduction
	13.2 Test Method
	13.3 Results
	13.4 Conclusion
	References