Challenges in Mechanics of Time Dependent Materials, Volume 2 (eBook)

Preface 5
Contents 6
Chapter 1: Experimental Characterisation of the Mechanical Properties of the Clay-Rock/Concrete Interfaces and Their Evolution... 8
1.1 Introduction 8
1.2 Experimental Campaign 9
1.3 Test Results 9
1.4 Conclusions/Perspectives 10
References 10
Chapter 2: Coupled Anisothermal Chemomechanical Degradation Solutions in One Dimension 11
2.1 Modeling Assumptions and Methodology 12
2.2 Linearized Temperature Form of the Mixture Energy Balance 13
2.3 Balance Equations 13
2.4 Constitutive Equations 13
References 14
Chapter 3: Time-Temperature Analysis, DMA and Compression in PBXs 16
3.1 Introduction 16
3.2 Experimental 16
3.3 Results 17
3.4 Time-Temperature Analysis 18
3.5 Discussion 21
3.6 Conclusion 22
References 22
Chapter 4: Statistical Life Time Prediction Under Tension Loading for Unidirectional CFRP with Thermoplastics as Matrices 23
4.1 Introduction 23
4.2 Statistical Prediction of Creep Failure Time of Unidirectional CFRTP 24
4.3 Molding of CFRTP Strands 25
4.4 Creep Compliance of Matrix Resin and Static Strength of CFRTP Strands 25
4.5 Creep Failure Time of CFRTP Strands 27
4.6 Conclusion 27
References 27
Chapter 5: Time and Temperature Dependence on Tensile Strength of Unidirectional CFRP with Various Carbon Fibers 29
5.1 Introduction 29
5.2 Statistical Prediction of Creep Failure Time of Unidirectional CFRP 30
5.3 Molding of CFRP Strands 31
5.4 Creep Compliance of Matrix Resin and Static Strength of CFRP Strands 31
5.5 Creep Failure Time of CFRP Strands 33
5.6 Temperature Dependence of Static Strength on Pitch Based Carbon Fiber Strands 34
5.7 Conclusions 35
References 36
Chapter 6: Time Temperature Superposition and Prony Series Coefficients of Asphalt Roof Shingle Material from Viscoelastic Cre... 37
6.1 Introduction 37
6.2 Sample Preparation 38
6.3 Viscoelastic Creep Experiments 38
6.4 Result and Discussion 39
6.5 Prony Series Representation of Creep Master Curve 41
6.6 Conclusion 41
References 42
Chapter 7: A Mixture Theory with Interactive Body Forces for Composite Interphases 43
7.1 Introduction 43
7.2 Rate of Entropy Production 43
7.3 Maximization of the Rate of Entropy Production 45
References 45
Chapter 8: Material Creep Behavior with Prediction of Tertiary Creep Failure by a Spherical Micro-indentation Method 47
8.1 Introduction 47
8.2 Creep Indentation 47
8.3 Creep Stress Exponent Determination Through Indentation 48
8.4 Creep Continuous Stiffness Response 48
8.5 Experimental Results 49
8.5.1 Evaluation of Creep Stress Exponent 49
8.5.2 Creep Continuous Stiffness Response 50
8.6 Conclusions and Discussions 52
References 52
Chapter 9: Mechanical and Biodegradable Behavior of AZ31 Magnesium Alloy Immersed in Simulated Body Fluid 53
9.1 Introduction 53
9.2 Experimental Methods 53
9.3 Results and Discussion 54
9.4 Conclusion 58
References 58
Chapter 10: Failure of Laser Welded Structures Subjected to Multiaxial Loading: Experimental Development 60
10.1 Background 60
10.2 Material 60
10.3 Specimen Design 60
10.4 Experimental Design 62
10.5 Initial Results 62
10.6 Summary 65
References 66
Chapter 11: Characterization and Modeling of PEEK in Histories with Reverse Loading 67
11.1 Introduction 67
11.2 Materials and Methods 68
11.3 Experimental Results and Discussion 69
11.4 Summary 71
References 71
Chapter 12: A Biomimetic Composite for Space Vehicle/Habitat Design 72
12.1 Introduction 72
12.1.1 Idealization 72
12.1.2 Core Layer 73
12.1.3 Cell Morphology 73
12.2 PU Foam Mechanics 74
12.2.1 Test Setup 75
12.3 Observations and Discussion 76
12.4 Conclusions 77
References 77
Chapter 13: Molecular Dynamics Motivated Maxwell Element Spring Nonlinearity 79
13.1 Continuum Constitutive Model 79
13.2 Dilatational Potential Energy Function 79
13.3 Distortional Potential Energy Function 80
13.4 Experimental Comparison 82
13.5 Conclusion 82
Chapter 14: Characterization and Simulation of Time-Dependent Response of Structural Materials for Aero Structures and Turbine... 83
14.1 Introduction 83
14.2 Ceramic Matrix Composites 84
14.3 Ni-Base Superalloys 84
14.4 Titanium 86
14.5 Polymer Matrix Composites 88
14.6 Summary 90
References 90