Advancement of Optical Methods in Experimental Mechanics, Volume 3

Preface	5
Contents	6
1 A New Method for Improving Measurement Accuracy of Digital Image Correlation	8
1.1 Introduction	8
1.2 Algorithm	9
1.2.1 Quasi Odd Function Feature of DIC System Error	9
1.2.2 Strategy	9
1.3 Experiments	11
1.4 Conclusion	12
References	12
2 Fatigue Analysis of 7075 Aluminum Alloy by Optoacoustic Method	13
2.1 Introduction	13
2.2 Experimental Procedure	14
2.2.1 Fatigue Test	14
2.2.2 Acoustic Measurement	14
2.2.3 Dynamic Observation of Deformation Behavior of Pre-fatigued specimen	14
2.3 Result and Discussion	16
2.3.1 Effect of Fatigue Cycle on Acoustic Wave Velocity	16
2.3.2 Deformation Behavior in Tensile Test	17
2.4 Conclusion	20
References	20
3 Early Strain Localization in Strong Work Hardening Aluminum Alloy (2198 T3): 3D Laminography and DVC Measurement	21
3.1 Introduction	21
3.2 Kinematic Fields and Damage Micromechanisms	22
References	23
4 On the In-Plane Displacement Measurement by 3D Digital Image Correlation Method	24
4.1 Introduction	24
4.2 Experimental Setup	25
4.3 Results and Discussions	26
4.3.1 In-Plane Displacements at Different Depths	26
4.3.2 Out-of-Plane Displacement	28
4.3.3 Laser Triangulation Measurement	28
4.3.4 Correcting the In-Plane Displacement	29
4.4 Conclusions	30
References	31
5 Noise Reduction in Amplitude-Fluctuation Electronic Speckle-Pattern Interferometry	32
5.1 Introduction	32
5.2 Michelson Interferometer	33
5.2.1 One-Dimensional, Time Dependent Phase Analysis	33
5.2.2 Two-Dimensional Phase Analysis Based on Amplitude-Fluctuation Interferometry	34
5.2.3 Phase Fluctuation due to Environmental Disturbance	35
5.2.4 Introduction of Carrier Fringe System	36
5.3 Experimental Results and Discussions	36
5.3.1 Normal Incident Configuration	36
5.3.2 Carrier Fringe Configuration	38
5.4 Summary	41
References	41
6 Evaluating Path of Stress Triaxiality to Fracture of Thin Steel Sheet Using Stereovision	42
6.1 Introduction	42
6.2 Experimental Procedure	43
6.3 Results	44
6.4 Conclusion	46
References	46
7 Studying with a Full-Field Measurement Technique the Local Response of Asphalt Specimens Subjected to Freeze-Thaw Cycles	47
References	49
8 Mechanical Shape Correlation: A Novel Integrated Digital Image Correlation Approach	50
8.1 Introduction	50
8.2 Algorithm	51
8.3 Images	52
8.3.1 Projection of Finite Element Simulation	52
8.3.2 Masking	53
8.4 Virtual Experiments	54
8.4.1 Double Bending of Beams	54
8.4.2 Torsion of Beams	55
8.5 Conclusions	57
References	57
9 On the Boundary Conditions and Optimization Methods in Integrated Digital Image Correlation	58
9.1 Introduction	58
9.2 Virtual Test Case	59
9.3 Optimization Methods	59
9.3.1 Gauss-Newton	60
9.3.2 Trust-Region	61
9.3.3 Nelder-Mead	61
9.3.4 Comparison of the Methods	62
9.4 Conclusions	63
References	64
10 Extension of the Monogenic Phasor Method to Extract Displacements and Their Derivatives from 3-D Fringe Patterns	65
10.1 Introduction	65
10.2 Determination of the Displacement Field in 3D	65
10.3 Properties of the Fourier Transform	68
10.4 Derivation of the 4D Hyper-Sphere	71
10.5 Computation of the Derivatives of the Displacements	72
10.6 Determination of Displacements and Strains of the Heart	72
10.7 Processing of the Data Contained in MRI Tagged Images	74
10.8 Computation of the Strains	74
10.9 Discussion and Conclusions	76
References	76
11 Deformation Measurement within a Volume of Translucent Yield Stress Material Using Digital Image Correlation	78
11.1 Introduction	78
11.2 Experimental Method	78
11.3 Results	79
11.4 Discussion	79
11.5 Conclusion	81
References	81
12 Surface Deformation with Simultaneous Contact Area Measurement for Soft Transparent Media due to Spherical Contact	82
12.1 Introduction	82
12.2 Experimental Method	82
12.3 Results	83
12.4 Discussion	84
12.5 Conclusion	84
13 Towards Measuring Intergranular Force Transmission Using Confocal Microscopy and Digital Volume Correlation	85
13.1 Introduction	85
13.2 Materials and Methods	85
13.2.1 Specimens	85
13.2.2 Experimental Design	86
13.3 Preliminary Results	86
13.4 Conclusions	88
References	88
14 Using Anti-aliasing Camera Filters for DIC: Does It Make a Difference?	89
14.1 Introduction	89
14.2 Experimental Setup	89
14.3 Results	91
14.4 Conclusions	92
References	92
15 Investigation of Electronic Speckle Pattern Interferometry with Line Laser Scanning for Large Area Deformation Measurement	93
15.1 Introduction	93
15.2 Electronic Speckle Pattern Interferometry with Line Laser Scanning	93
15.3 Experiment	94
15.4 Results and Discussion	94
15.5 Conclusion	94
Reference	95
16 Internal Heat Generation in Tension Tests of AISI 316 Using Full-Field Temperature and Strain Measurements	96
16.1 Introduction	96
16.2 Experimental Procedures and Techniques	97
16.2.1 Specimen Geometry and Material	97
16.2.2 Full-Field Thermal Imaging and Calibration	98
16.3 Experimental Results	99
16.4 Summary and Conclusions	102
References	102
17 A Short Survey on Residual Stress Measurements by HDM and ESPI	103
17.1 Introduction	103
17.2 Origin of ESPI-HDM	104
17.3 Development of the Technique	104
17.4 Recent Progresses	105
17.5 Final Considerations	106
References	106
18 Feasibility of Using Fringe Projection System for Corrosion Monitoring in Metals of Interest in Cultural Heritage	109
18.1 Introduction	109
18.2 Materials and Methods	110
18.3 Results and Discussion	111
18.4 Conclusions	114
References	115

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