Search for dissertations about: "Kristian Haller"
Found 2 swedish dissertations containing the words Kristian Haller.
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1. Acoustical Measurements of Material Nonlinearity and Nonequilibrium Recovery
Abstract : A damaged material or a material with non perfect atomic geometry, dislocations or cracks, exhibits two types of characteristic responses to acoustic excitations. First is the fast nonlinear dynamics response that is present as long as the material is excited. As soon as the excitation stops the response disappear. READ MORE
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2. Nonlinear Acoustics Applied to NonDestructive Testing
Abstract : Sensitive nonlinear acoustic methods are suitable for material characterization. This thesis describes three nonlinear acoustic methods that are proven useful for detection of defects like cracks and delaminations in solids. READ MORE