REG: Correlation Between Microstractural Inelasticity and Macroscopic Response of Advanced Materials: Acquisition of a Multi-Channel Laser Interferometer and Sample Preparation

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9311289 Espinosa The research to be performed in this investigation will explore microcracking and inelasticity of ceramics and glasses; deformation mechanisms occurring at the microlevel when such materials are subjected to high stresses and strain rates; dynamic propagation of bimaterial cracks; critical conditions for crack initiation and propagation as a function of mode mixity; dynamic friction on films at various temperatures; local inelasticity, mircoplasticity and microcracking in the frictional behavior of interfaces as a function of surface characteristics and lubrication; thermomechanical characterization of smart materials; identification of initiation sites for phase transformations, incubation times and growth kinetics; and the derivation of multidimensional constitutive models.