Search for dissertations about: "Lamb wave"
Showing result 1 - 5 of 12 swedish dissertations containing the words Lamb wave.
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1. Lamb wave evaluation of concrete plates
Abstract : This thesis is about the application of Lamb waves for non-destructive evaluation of plate-like concrete structures under one-sided access test condition using a portable equipment consisting of an accelerometer and impact hammer. With this type of equipment and based on array signal processing, the impact-echo (IE) method can be extended with measurements of surface waves; this extension allows an evaluation with Lamb waves. READ MORE
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2. Spectra and Dynamics of Excitations in Long-Range Correlated Structures
Abstract : Vad karaktäriserar en kristall? Svaret på denna till synes enkla fråga blir kanske att det är en anordning av atomer uppradade i periodiska mönster. Så ordnade strukturer kan studeras genom att det uppträder så kallade Braggtoppar i röntgendiffraktionsmönstret. READ MORE
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3. Damage detection in composites using embedded piezoceramic transduceers and lamb wave techniques
Abstract : .... READ MORE
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4. Non-contact surface wave measurements on pavements
Abstract : In this thesis, nondestructive surface wave measurements are presented for characterization of dynamic modulus and layer thickness on different pavements and cement concrete slabs. Air-coupled microphones enable rapid data acquisition without physical contact with the pavement surface. READ MORE
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5. Surface Wave Testing of Pavements
Abstract : A novel approach for surface wave testing of pavements is presented. It is a non-destructive testing (NDT) technique that can be used to obtain the thickness and stiffness properties of the different layers in a pavement. READ MORE