Contents 1 Interface Mechanical Strength and Elastic Constants Calculations via Nano Impact and Nanomechanical Raman Spectroscopy .......................................................................... 1 Devendra Verma and Vikas Tomar 2 Effect of Strain Rate and Interface Chemistry on Failure in Energetic Materials ............................... 7 Chandra Prakash, I. Emre Gunduz, and Vikas Tomar 3 Characterization of Crack Tip Plasticity in IN-617 Using Indentation and Nano-Mechanical Raman Spectroscopy ............................................................................................................. 13 Yang Zhang and Vikas Tomar 4 The Two-Way Relationship Between Residual Stress and Fatigue/Fracture ..................................... 19 Michael B. Prime 5 Designing Brittle Fracture Specimens to Investigate Environmentally Assisted Crack Growth ............... 25 Sunday Aduloju, Wenjia Gu, Timothy Truster, John Emery, Dave Reedy, and Scott J. Grutzik 6 Flexible Energy Harvesting/Storage Structures for Flapping Wing Air Vehicles ................................ 35 Alex Holness, Hugh A. Bruck, and Satyandra K. Gupta 7 The Influence of Formulation Variation and Thermal Boundary Conditions on the Near-Resonant Thermomechanics of Mock Explosives................................................................................ 47 Allison R. Range, Nicole R. McMindes, Jaylon B. Tucker, and Jeffrey F. Rhoads 8 Detecting Fatigue Crack Closure and Crack Growth Delays After an Overload Using DIC Measurements . 57 G.L.G. Gonzáles, J.A.O. González, J.T.P. Castro, and J.L.F. Freire 9 In-Situ Observation of Damage Evolution in Quasi-Isotropic CFRP Laminates ................................ 67 Addis Tessema, Suraj Ravindran, Abigail Wohlford, and Addis Kidane 10 Contamination-Induced Degradation/Enhancement of Interfacial Toughness and Strength in Polymer-Matrix Composite Interfaces ............................................................................. 73 Denizhan Yavas, Xu Shang, and Ashraf F. Bastawros 11 Direct and Simultaneous Extraction of Mixed-Mode Traction-Separation Relations ........................... 79 Chenglin Wu, Rui Huang, and Kenneth M. Liechti 12 Damage Evolution in 304L Stainless Steel Partial Penetration Laser Welds ..................................... 85 Sharlotte Kramer, Amanda Jones, John Emery, and Kyle Karlson 13 Cross-Axis Coupling and Phase Angle Effects Due to Multiaxial Vibration...................................... 95 Ed Habtour, Abhijit Dasgupta, and Sabrina Vantadori 14 Behavior of Steel-Concrete Composite Beams Under Fatigue Loads.............................................. 99 Ayman El-Zohairy and Hani Salim 15 Studying the Fracture of Tropical Wood Species with the Grid Method.......................................... 111 B. Odounga, R. Moutou Pitti, E. Toussaint, and M. Grédiac vii
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