Global ETD Search

231	Effects of Chemistry on Toughness and Temperature on Structural Evolution in Metallic Glasses Shamimi Nouri, Ali 25 February 2009 (has links) No description available. Materials Science Mechanical Engineering Metallic Glasses Toughness Weibull Modulus Structural Evolution TEM Micro-hardness Elastic Constants
232	Viscosity effects on the flow and fracture of metallic glasses and other viscous materials Deibler, Lisa A. 11 April 2011 (has links) No description available. Materials Science Metallurgy Metallic glasses toughness viscosity pressure DMA dynamic mechanical analysis
233	Mechanical and Structural Characterization of Mini-Bar Reinforced Concrete Beams Adhikari, Sudeep January 2013 (has links) No description available. Civil Engineering
234	Mental Toughness: Effect on Factors Associated with Injury and Illness in Adolescent Athletes Baker, Frank W., Jr. 22 September 2014 (has links) No description available. Behaviorial Sciences Health Sciences Sports Medicine mental toughness athlete burnout overtraining syndrome adolescent athlete
235	Understanding Low temperature Impact Toughness of 2.25Cr-1Mo steel Submerged Arc Welds Mohan, Soumya 20 May 2015 (has links) No description available. Engineering Submerged arc welds Charpy Impact Toughness Granular Bainite Precipitate Evolution Slag Metal reactions Phase Transformations
236	Feeding ecology of black and white colobus monkeys from south coastal Kenya: the influence of spatial availability, nutritional composition, and mechanical properties of food items Dunham, Noah T. 27 June 2017 (has links) No description available. Behavioral Sciences Ecology primate feeding ecology nutritional ecology colobus monkey leaf toughness
237	Non-destructive Evaluation Measurements and Fracture Effects in Carbon/Epoxy Laminates Containing Porosity Hakim, Issa A. 28 August 2017 (has links) No description available. Mechanical Engineering Carbon fiber composites porosity NDE interlaminar fracture toughness fatigue mode I fractography
238	Tuning Mechanics of Bio-Inspired Polymeric Materials through Supramolecular Chemistry Monemian, Seyedali 13 September 2016 (has links) No description available. Polymers Polymer Chemistry Plastics
239	Application of Bayesian Neural Network Modeling to Characterize the Interrelationship between Microstructure and Mechanical Property in Alpha+Beta-Titanium Alloys Koduri, Santhosh K. 03 September 2010 (has links) No description available. Materials Science Metallurgy Titanium Alloys Neural Networks Phase Trasformations Fracture Toughness
240	Fracture and self-sensing characteristics of super-fine stainless wire reinforced reactive powder concrete Dong, S., Dong, X., Ashour, Ashraf, Han, B., Ou, J. 11 June 2019 (has links) Yes / Super-fine stainless wire (SSW) can not only form widely distributed enhancing, toughening and conductive network in reactive powder concrete (RPC) at low dosage level, but also improve weak interface area and refine cracks due to its micron scale diameter and large specific surface. In addition, the crack resistance zone generated by SSWs and RPC matrix together has potential to further enhance the fracture properties of composites. Therefore, fracture and self-sensing characteristics of SSW reinforced RPC composites were investigated in this paper. Experimental results indicated that adding 1.5 vol. % of SSW leads to 183.1% increase in the initial cracking load of RPC specimens under three-point bending load. Based on two parameter fracture model calculations, an increase of 203.4% in fracture toughness as well as an increase of 113.3% in crack tip opening displacement of the composites reinforced with 1.5% SSWs are achieved. According to double-K fracture model calculations, the initiation fracture toughness and unstable fracture toughness of the composites are enhanced by 185.2% and 179.2%, respectively. The increment for fracture energy of the composites reaches up to 1017.1% because of the emergence of blunt and tortuous cracks. The mixed mode Ⅰ-Ⅱ fracture toughness of the composites is increased by 177.1% under four-point shearing load. The initial angle of mixed mode Ⅰ-Ⅱ cracks of the composites decreases with the increase of SSW content. The initiation and propagation of cracks in the composites can be monitored by their change in electrical resistivity. The excellent fracture toughness of the composites is of great significance for the improvement of structure safety in serviceability limit states, and the self-sensing ability of the composites can also provide early warning for the degradation of structure safety. / National Key Research and Development Program of China (2018YFC0705601), the National Science Foundation of China (51578110), China Postdoctoral Science Fundation (2019M651116) and the Fundamental Research Funds for the Central Universities in China (DUT18GJ203). Super-fine stainless wire Reactive powder concrete Fracture toughness Fracture energy Fracture self-sensing

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