Challenges in Mechanics of Time Dependent Materials, Volume 2: Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics ... Society for Experimental Mechanics Series)

Challenges in Mechanics of Time-Dependent Materials, Volume 2 of the Proceedings of the 2017 SEM Annual Conference& Exposition on Experimental and Applied Mechanics, the second volume of nine from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Experimental Mechanics, including papers in the following general technical research areas: Characterization Across Length Scales Extreme Environments & Environmental Effects Viscoelasticity Structure Function Performance Polymer Viscoplasticity Metallic Materials Fracture/Fatigue/Damage Composites Soft Materials 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 Front Matter ....Pages i-viii Experimental Characterisation of the Mechanical Properties of the Clay-Rock/Concrete Interfaces and Their Evolution in Time (Eleni Stavropoulou, Matthieu Briffaut, Frédéric Dufour, Guillaume Camps)....Pages 1-3 Coupled Anisothermal Chemomechanical Degradation Solutions in One Dimension (M. Anguiano, H. Gajendran, R. B. Hall, A. Masud)....Pages 5-9 Time-Temperature Analysis, DMA and Compression in PBXs (Darla Graff Thompson, Jamie Stull, Racci Deluca, Geoff Brown)....Pages 11-17 Statistical Life Time Prediction Under Tension Loading for Unidirectional CFRP with Thermoplastics as Matrices (Masayuki Nakada, Yoko Morisawa, Yasushi Miyano)....Pages 19-24 Time and Temperature Dependence on Tensile Strength of Unidirectional CFRP with Various Carbon Fibers (Yasushi Miyano, Yoshiki Kobayashi, Masayuki Nakada)....Pages 25-32 Time Temperature Superposition and Prony Series Coefficients of Asphalt Roof Shingle Material from Viscoelastic Creep Testing (Sreehari Rajan, Michael A. Sutton, Ryan Fuerte, Igor Emri)....Pages 33-38 A Mixture Theory with Interactive Body Forces for Composite Interphases (R. B. Hall)....Pages 39-42 Material Creep Behavior with Prediction of Tertiary Creep Failure by a Spherical Micro-indentation Method (Dumbi C. Otunyo, Bruce S. Kang)....Pages 43-48 Mechanical and Biodegradable Behavior of AZ31 Magnesium Alloy Immersed in Simulated Body Fluid (Wenxue Lin, Ning Zou, Qizhen Z. Li)....Pages 49-55 Failure of Laser Welded Structures Subjected to Multiaxial Loading: Experimental Development (Bonnie R. Antoun, Kevin Connelly)....Pages 57-63 Characterization and Modeling of PEEK in Histories with Reverse Loading (Wenlong Li, George Gazonas, Eric N. Brown, Philip J. Rae, Mehrdad Negahban)....Pages 65-69 A Biomimetic Composite for Space Vehicle/Habitat Design (Ashok Kumar Ghosh, Ramon Martinez, Carl M. Cady)....Pages 71-77 Molecular Dynamics Motivated Maxwell Element Spring Nonlinearity (G. A. Arzoumanidis, T. J. L. Mustard, M. D. Halls, Stephen Christensen)....Pages 79-82 Characterization and Simulation of Time-Dependent Response of Structural Materials for Aero Structures and Turbine Engines (Stephan M. Russ, Reji John, Craig P. Przybyla)....Pages 83-91