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1	Digital Image Correlation in Dynamic Punch Testing and Plastic Deformation Behavior of Inconel 718 Liutkus, Timothy James 09 September 2014 (has links) No description available. Engineering Mechanical Engineering Aerospace Materials
2	Structure-Property Relationships of an A36 Steel Alloy under Dynamic Loading Conditions Mayatt, Adam J 15 December 2012 (has links) Structure-property quantification of an A36 steel alloy was the focus of this study in order to calibrate and validate a plasticity-damage model. The microstructural parameters included grain size, particle size, particle number density, particle nearest neighbor distances, and percent of ferrite and pearlite. The mechanical property data focused on stress-strain behavior under different applied strain rates (0.001/s, 0.1/s, and 1000/s), different temperatures (293 K and 573 K), and different stress states (compression, tension, and torsion). Notch tension tests were also conducted to validate the plasticity-damage model. Also, failure of an A36 I-beam was examined in cyclic loads, and the crack growth rates were quantified in terms of fatigue striation data. Dynamic strain aging was observed in the stress-strain behavior giving rise to an important point that there exists a critical temperature for such behavior. A36 steel alloy low carbon steel Dynamic loading Dynamic strain aging Hopkinson High rate testing Material characteristics Facture surfaces A36 hot rolled plate Plasticity damage model Chemical composition by weight percent
3	Developing the Axisymmetric Expanding Ring: A High Strain-Rate Materials Characterization Test Johnson, Jason R. 02 June 2014 (has links) No description available. Materials Science Engineering Mechanics Metallurgy Mechanical Engineering Physics Electromagnetics Experiments Ring expansion axisymmetric expanding ring test high rate testing high strain rate OFHC copper FIRE system photon doppler velocimetry PDV

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