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Showing result 1 - 5 of 22 swedish dissertations matching the above criteria.
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1. Numerics of Elastic and Acoustic Wave Motion
Abstract : The elastic wave equation describes the propagation of elastic disturbances produced by seismic events in the Earth or vibrations in plates and beams. The acoustic wave equation governs the propagation of sound. READ MORE
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2. Elastic Wave Scattering by Closed Cracks and Thin Flaws - Multiple Scattering and Resonances
Abstract : In this thesis we study elastic wave scattering by thin flaws and closed cracks, which finds applications in ultrasonic testing and evaluation of materials. First we consider the scattering of an SH-wave by a thin finite elastic layer between two elastic half-spaces. READ MORE
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3. Elastic wave scattering from corrugated surfaces in anisotropic media
Abstract : .... READ MORE
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4. High Order Cut Finite Element Methods for Wave Equations
Abstract : This thesis considers wave propagation problems solved using finite element methods where a boundary or interface of the domain is not aligned with the computational mesh. Such methods are usually referred to as cut or immersed methods. READ MORE
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5. Elastic Wave Propagation in Anisotropic Media. Application to Ultrasonic NDT
Abstract : The subject of this thesis is elastic wave propagation in anisotropic materials with application to ultrasonic nondestructive testing (NDT). The first part of the thesis is concerned with modeling of ultrasonic transducers and wave propagation in anisotropic materials in general. First, a scalar 2-D case is considered. READ MORE