Experimental and Applied Mechanics, Volume 4 (eBook)

Proceedings of the 2015 Annual Conference on Experimental and Applied Mechanics

Cesar Sciammarella, John Considine, Paul Gloeckner (Herausgeber)

eBook Download: PDF

2015 | 1st ed. 2016
VIII, 199 Seiten
Springer International Publishing (Verlag)
978-3-319-22449-7 (ISBN)

Infos

Experimental and Applied Mechanics, Volume 4 of the Proceedings of the 2015SEM Annual Conference& Exposition on Experimental and Applied Mechanics, the fourth volume of nine from the Conference, brings together contributions to important areas of research and engineering.  The collection presents early findings and case studies on a wide range of topics, including:

Advanced Methods for Frontier Applications,

Non-Homogeneous Parameters Identification,

Teaching Experimental Mechanics in the 21^st Century,

Material Characterization and Testing,

Mechanics of Interfaces

Novel Applications of Experimental Mechanics

Inhalt

Preface 6
Contents 8
Chapter 1: Experimental Characterization of Shape Fixity in Transversely Curved Unimorph Shape Memory Polymer Actuators 10
1.1 Introduction 11
1.2 Fabrication Methods, Experimental Set-Ups, and Procedures 12
1.2.1 Materials 12
1.2.2 Unimorph Composite Actuator Fabrication 12
1.2.3 Camera Set-up 12
1.2.4 Environmental Chamber Set-up 13
1.2.5 UCA Sample Holder Set-up 13
1.2.6 Procedure to Measure UCA Fixity 13
1.3 Unimorph Composite Actuator Results 14
1.4 Conclusion 18
References 18
Chapter 2: Full-Field Three-Dimensional Characterization of Non-repetitive Motions by Single-Shot Multiplexed Digital Holograp... 20
2.1 Introduction 20
2.2 Methods 21
2.2.1 Off-Axis Multiplexed Lensless Digital Holography 21
2.2.2 Multiplexed Holographic System 22
2.3 Results 23
2.3.1 3D Motion of an Artificial Sample 23
2.3.2 3D Motions of Human TM 25
2.4 Conclusions 26
References 27
Chapter 3: Basic Foundations of Signal Analysis Models Applied to Retrieval of Displacements and Their Derivatives Encoded in ... 28
3.1 Introduction to Signal Analysis of 2D Patterns That Contain Displacement Information 28
3.2 Frequency Modulation Model of Isothetic Fringes 29
3.3 Spectrum of Isothetic Signals 32
3.4 Differences Between the Theoretical Model and the Actual Recorded Signals 34
3.5 Analytical Signal Theory Applied to the Methods of Retrieving Information from Isothetic Fringe Pattern 35
3.6 Application of the Bedrosian and the Bedrosian-Nuttall Theorems to the Recovery of Signals 37
3.7 Practical Aspects of the Application of the Quasi-Harmonic Extension and the Bedrosian Theorems 40
3.8 Examples of Phase Recovery from Gray-Levels 40
3.9 Summary and Conclusions 41
References 42
Chapter 4: Recent Optical Measurements for the Mechanical Properties of Thin Films 43
4.1 Introduction 43
4.2 Experimental 44
4.2.1 Testing System I 44
4.2.2 Testing System II 46
4.3 Results 47
4.4 Conclusions 48
References 48
Chapter 5: Evaluation of the Penalized Least Squares Method for Strain Computation 50
5.1 Introduction 50
5.2 The Penalized Least-Squares Algorithm 51
5.3 Smoothing of Kinematic Maps: Evaluation of Performances 52
5.3.1 Smoothing of a Noised Map of a 2D Analytical Function 52
5.3.2 Smoothing of Kinematic Maps from FE Simulation 54
5.3.3 Smoothing of Experimental Kinematic Maps 55
5.4 Conclusion 56
References 57
Chapter 6: Speckle Projection Profilometry Using a Diffractive Telecentric Arrangement 58
6.1 Introduction 58
6.2 Traditional Speckle Projection Profilometry 59
6.3 Diffractive Telecentric Speckle Projection 61
6.4 Perspective Error Correction 62
6.5 Experimental Procedure and Results 63
6.6 Discussion and Conclusion 65
References 66
Chapter 7: Use of VFM for Heterogeneity Evaluation of Materials Under Uniaxial Tensile Stress 67
7.1 Introduction 67
7.2 Uniaxial Model 68
7.3 Application of VFM to Heterogeneous Materials 69
7.3.1 Optimized, Piecewise Virtual Fields 69
7.3.2 Location of Inclusion Known a Priori 69
7.3.3 Equilibrium Gap 70
7.3.4 Fourier-VFM 70
7.4 Results and Discussion 71
7.5 Conclusion 72
References 72
Chapter 8: Optimized Test Design for Identification of the Variation of Elastic Stiffness Properties of Loblolly Pine (Pinus t... 73
8.1 Introduction 73
8.2 Methods 74
8.2.1 Background on Loblolly and Lodgepole Pine Study Material 74
8.2.2 Experimental Test Methods 74
8.2.3 Parameter Identification from Virtual Fields Method 74
8.2.4 Full-Field Displacements Measurement Technique 75
8.3 Finite Element and Grid Simulations 75
8.3.1 Finite Element Model 75
8.3.2 Material Property Input for FE Modeling 76
8.3.3 Grid Simulations 76
8.4 Virtual Fields Method for Constitutive Parameter Identification 77
8.4.1 Optimization of Angle Using Simulated Results 79
8.5 Summary 80
8.6 Future Plans 81
References 82
Chapter 9: Investigation of the Hydric Transfer Phenomenon in Wood at the Ring Scale with the Grid Method 83
9.1 Introduction 83
9.2 Materials and Methods 83
9.3 Experimental Results and Discussion 84
9.4 Conclusion 87
References 87
Chapter 10: Extension of the Non-linear Virtual Fields Method to Inertial Heterogeneous High Strain Rate Tests 88
10.1 Introduction 88
10.2 Principle 88
10.3 Methodology 89
10.3.1 Validation on Finite Element Simulated Measurements 89
10.3.2 Test Design 90
10.3.3 Experimental Implementation 91
10.4 Results 91
10.5 Conclusion 92
References 92
Chapter 11: Experimental Mechanics for Graduate Students 93
11.1 Introduction 93
11.2 Course Description 93
11.2.1 Optical Interferometry 94
11.2.2 Introduction to Fourier Optics 95
11.2.3 Digital Image Correlation and Particle Image Velocimetry 95
11.2.4 Linear Systems, Filter and Circuit Design 95
11.3 Course Laboratory Modules 96
11.4 Student Assessment 96
11.5 Course Case Study Example 96
11.6 Experimental Mechanics ENGN2320 Lab-2 Diffraction Lab 96
11.6.1 Introduction 96
11.6.2 Theory 96
11.6.2.1 Gaussian Distribution 96
11.6.2.2 Fraunhofer Diffraction 97
11.6.3 Discussion 97
11.6.3.1 Gaussian vs. Delta Source Intensity Profile 97
11.6.3.2 Source Centering 98
11.6.3.3 Effect of Aperture Shape on Diffraction Pattern Symmetry 99
11.6.3.4 Observation Distance 100
11.7 Conclusions 100
References 101
Chapter 12: Bridge Foundation Depth Estimation Using Sonic Echo Test 102
12.1 Introduction 102
12.2 SE Tests on a Wooden Column 103
12.3 Sonic Echo (SE) Tests on Timber Piles of Santo-Domingo Bridge 105
12.4 Conclusions 108
References 109
Chapter 13: Detonation of Small Charges Buried in Cohesionless Soil 110
13.1 Introduction 110
13.2 Overview the Experimental Setup 111
13.3 Soil Tank Preparation and Control of the Soil 112
13.3.1 Step by Step Soil Tank Preparation 112
13.3.2 Density and Water Content Controls of the Soil Prior and After the Shots 113
13.3.3 Comparison of the Two Methods of Soil Measures 113
13.4 Experimental Results 114
13.4.1 Propagation of the Shock Wave 114
13.4.2 Measured Craters 115
13.4.3 Main Pressure Results 115
13.4.4 Measurement of the Vertical Force at the Bottom of the Tank 116
13.5 Conclusion 116
References 117
Chapter 14: Similitude Analysis of Composite I-Beams with Application to Subcomponent Testing of Wind Turbine Blades 118
14.1 Introduction 118
14.2 Governing Equations 120
14.2.1 Bending of a Thin-Walled Composite Beam Using Shear-Deformable Beam Theory 120
14.3 Complete Similarity 120
14.4 Partial Similarity 123
14.4.1 Distorted Layup Scaling Approach 123
14.5 Discussion 126
14.6 Conclusion 127
Appendix 128
References 129
Chapter 15: Validating FSI Simulations in LS-DYNA 971 R7 130
15.1 Introduction 130
15.2 Experimental 131
15.3 Summary and Conclusions 133
References 133
Chapter 16: In Vitro Experimental Study for the Determination of Cellular Characteristics of Mesenchymal Stem Cells Using a No... 134
16.1 Introduction 134
16.2 Materials and Methods 135
16.2.1 Cell Preparation 135
16.2.2 Application of Cyclic Stretch with Inhomogeneous Strain Field 135
16.2.3 Measurement of Cell Orientation 136
16.2.4 3D Histogram of the Cell Frequency 136
16.2.5 Determination of Axial Strain Threshold and Preferential Axial Strain of the Cells 136
16.3 Results 137
16.4 Discussion 137
16.5 Conclusions 139
References 139
Chapter 17: Development of New Method for Direct Measurement of High Strain Rate Testing Parameters 141
17.1 Introduction 141
17.2 Test Materials and Specimens 142
17.3 Conventional SHPB Testing 142
17.4 New Direct Measurement SHPB Testing 144
17.4.1 Direct Measurement SHPB Apparatus 144
17.4.2 Testing 145
17.4.3 Test Results 145
17.5 Conclusion 148
References 148
Chapter 18: Simultaneous Measurement of Polymerization Stress Evolution, Conversion Kinetics, and Exotherm in Real-Time 150
18.1 Introduction 150
18.2 Methods 151
18.3 Results 152
18.4 Conclusion 154
References 154
Chapter 19: Symmetric and Asymmetric Double Cantilever Beam Methods for Interfacial Adhesion Strength Measurement in Electroni... 155
19.1 Introduction 155
19.2 DCB Sample Preparation 156
19.2.1 Silicon-CUF DCB Sample Preparation 157
19.2.2 Solder Resist-CUF DCB Sample Preparation 158
19.3 Overview of DCB Testing and Calculations 158
19.3.1 DCB Testing Procedure 158
19.3.2 Critical Strain Energy Release Rate Calculations for DCB 159
19.4 DCB Applications: Results and Discussion 160
19.4.1 Effect of Flux Materials Used in Chip-Attach on Silicon-Capillary Underfill Adhesion 161
19.4.2 Adhesion of Solder Resist to Capillary Underfill Adhesion 162
19.4.3 DCB Test Fractography 163
19.5 Conclusions 163
References 164
Chapter 20: Experimental Study of Mechanical Performance in Friction Stir Welded Dissimilar Titanium Alloys 165
20.1 Introduction 165
20.2 Specimen Preparation 166
20.3 Experimental Method 167
20.4 Results and Discussions 168
20.5 Conclusion 171
References 171
Chapter 21: Testing a Multi-bay Box Subjected to Combined Loads 172
21.1 Introduction 172
21.2 Combined Loads Test System 172
21.3 Goals of the Multi-bay Test Article Experiment 174
21.3.1 Damage Arresting Composites 174
21.3.2 Multi-bay Pressure Box 175
21.4 Preparation for the Multi-bay Box Test 175
21.4.1 Control System 176
21.4.2 Control System Checkout 177
21.4.3 Instrumentation 177
21.4.4 Installation Between Platens 178
21.5 Testing 178
21.5.1 Pristine Structure Testing 179
21.5.2 Barely Visible Impact Damage Testing 180
21.6 Concluding Remarks 181
References 181
Chapter 22: A Study on the Generation of a Fine-Grained Layer in Upsetting Between Flat and Conical Dies 182
22.1 Introduction 182
22.2 Conceptual Approach 183
22.3 Experiment 184
22.4 Strain Rate Intensity Factor in Upsetting 186
22.5 Conclusions 188
References 189
Chapter 23: Interface Microstructure and Strength of TLP Bonded Iron and Steel 190
23.1 Introduction 190
23.2 Experimental Procedure 191
23.3 Results and Discussion 191
23.3.1 Microstructure of Diffusion Bonded Fe 191
23.3.2 Microstructure of Diffusion Bonded SS321 192
23.3.3 Mechanical Properties 196
23.4 Conclusion 197
References 198
ERRATUM 199

Produkt-Details

• Erscheint lt. Verlag: 30.10.2015
• Reihe/Serie: Conference Proceedings of the Society for Experimental Mechanics Series
• Reihe/Serie: Conference Proceedings of the Society for Experimental Mechanics Series
• Zusatzinfo: VIII, 199 p. 181 illus., 150 illus. in color.
• Verlagsort: Cham
• Sprache: englisch
• Themenwelt: Mathematik / Informatik ► Mathematik ► Statistik
• Themenwelt: Mathematik / Informatik ► Mathematik ► Wahrscheinlichkeit / Kombinatorik
• Themenwelt: Technik ► Maschinenbau
• Schlagworte: Advanced Methods for Frontier Applications • Conf. Proc. of the Society for Experimental Mechanics Series • Experimental and Applied Mechanics • Material Characterization and Testing • Novel Applications of Experimental Mechanics
• ISBN-10: 3-319-22449-2 / 3319224492
• ISBN-13: 978-3-319-22449-7 / 9783319224497