Advancements in Optical Methods & Digital Image Correlation in Experimental Mechanics, Volume 3 - Proceedings of the 2019 Annual Conference on Experimental and Applied Mechanics

von: Ming-Tzer Lin, Cesar Sciammarella, Horacio D. Espinosa, Cosme Furlong, Luciano Lamberti, Phillip Reu

Springer-Verlag, 2019

ISBN: 9783030300098 , 130 Seiten

Format: PDF, Online Lesen

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Advancements in Optical Methods & Digital Image Correlation in Experimental Mechanics, Volume 3 - Proceedings of the 2019 Annual Conference on Experimental and Applied Mechanics


 

Preface

6

Contents

7

1 Digital Projection Speckle Technique for Fringe Generation

9

Introduction

9

Experimental Procedures

9

Principle of the Method

11

Results

11

Conclusion and Discussion

12

References

15

2 Quantifying Wrinkling During Tow Placement on Curvilinear Paths

16

Introduction

16

Experiments

16

Experimental Results and Discussion

17

References

19

3 Experimental Mechanics, Tool to Verify Continuum Mechanics Predictions

20

Introduction

20

Determination of the Local Kinematic Variables

21

Transformation of Recorded Gray Levels into Vectorial Fields

22

Analysis of the Displacement Functions in the Complex Plane

24

Derivatives of the Displacements

25

Displacement Vector and Metric Properties

26

Rigid Body Rotation of an Element of Area

27

Properties of the Symmetric Part of the Tensor

27

Additional Information From the Kinematics of the Continuum

29

Connecting Kinematical Variables and Dynamic Variables

29

Constitutive Functions

31

Applications of the Derived Relationships of Continuum Kinematics to Experimental Data of Derivatives

32

Experimental Observations Related to the Concept of RVE

33

Experimental Verification of Constitutive Equations Relationships

34

Discussion and Conclusions

39

References

39

4 Study the Deformation of Solid Cylindrical Specimens Under Torsion Using 360 DIC

40

Introduction

40

Specimen and Experiment

40

Analysis

41

Conclusions

42

5 Multiscale XCT Scans to Study Damage Mechanism in Syntactic Foam

43

Introduction

43

Experiment and Results

44

6 An Investigation of Digital Image Correlation for Earth Materials

46

Introduction

46

Sample Preparation

47

Experimentation

47

Conclusion

50

References

50

7 Dynamics of Deformation-to-Fracture Transition Based on Wave Theory

51

Introduction

51

Theory

52

Numerical Analysis

53

Finite Element Model (FEM)

53

General Argument Regarding Transition to Fracture

53

Numerical Tests

55

Concluding Remarks

58

References

59

8 Fatigue Monitoring of a Dented Pipeline Specimen Using Infrared Thermography, DIC and Fiber Optic Strain Gages

60

Introduction

60

Material and Experimental Procedure

61

Finite Element Model (FEM)

63

Results and Discussion

64

Conclusions

68

References

68

9 Development of Optical Technique For Measuring Kinematic Fields in Presence of Cracks,FIB-SEM-DIC

70

Introduction

70

Experimental Procedures

71

Making Speckles by FIB

71

Good Practice of SEM Imaging for Metrology

72

Displacement Error Evaluations

72

Separation of Cracks and Strains Using a Heaviside-Digital Image Correlation Method

73

Application and Analysis on a Composite Metallic Material Al/-Al-Cu-Fe

74

Material Global Characteristics

74

Marking Process and Specimen Dimension

74

First Results

75

Conclusions

76

References

76

10 DIC Determination of SIF in Orthotropic Composite

78

Introduction

78

Analytical Background

78

Analytical-Experimental Hybridization

80

Summary and Conclusions

81

References

81

11 Determining In-Plane Displacement by Combining DIC Method and Plenoptic Camera Built-In Focal-Distance Change Function

82

Introduction

82

Experimental Setup

83

Results and Discussions

83

Image Dimension-Change Introduced by Adjusting Focal Length Numerically

84

Determining In-Plan Displacement by Combining Images of Different Focal Lengths

85

Conclusions

88

12 Identification of Interparticle Contacts in Granular Media Using Mechanoluminescent Material

90

Introduction

90

Material Elaboration and Experimental Setup

91

Preliminary Uniaxial Tensile Tests

92

Application to Granular Configurations

92

References

94

13 Colour Transfer in Twelve Fringe Photoelasticity (TFP)

96

Introduction

96

Algorithm for Colour Transfer Using Principal Component Analysis (PCA)

97

Performance of the Proposed Algorithm

98

Conclusion

99

References

99

14 Infrared Deflectometry

100

Introduction

100

Experimental Set-Up

101

Results

101

Conclusion and Future Work

102

References

102

15 Real-Time Shadow Moiré Measurement by Two Light Sources

104

Introduction

104

Principles

104

Test Results and Conclusion

106

References

106

16 Study of MRI Compatible Piezoelectric Motors by Finite Element Modeling and High-Speed Digital Holography

107

Introduction

107

Simulation

108

Methodology

109

Results

110

Conclusion and Future Work

113

References

113

17 Digital Volume Correlation: Progress and Challenges

115

Introduction

115

Background

115

Achievements

115

Challenges

116

References

116

18 Development of 3D Shape Measurement Device Using Feature Quantity Type Whole-Space Tabulation Method

118

Introduction

118

Principle of F-WSTM

118

Prototype and Experiment

119

Conclusion

120

References

121

19 Temporal Phase Unwrapping for High-Speed Holographic Shape Measurements of Geometrically Discontinuous Objects

122

Introduction

122

Methods

123

Results

123

Conclusion and Future Work

123

References

125

20 Projection-Based Measurement and Identification

126

Introduction

126

Background

127

Analysis

128

Conclusion

128

References

130