Search for dissertations about: "spherical indentation"

Showing result 1 - 5 of 8 swedish dissertations containing the words spherical indentation.

  1. 1. Mechanical Behaviour of Gas Turbine Coatings

    Author : Mats Eskner; KTH; []
    Keywords : thermal barrier coatings; TBC; small punch test; miniaturised disc bending test; mdbt; spherical indentation; gas turbine coatings; NiAl; NiCoCrAlY; NiCrAlY; mechanical properties;

    Abstract : Coatings are frequently applied on gas turbine components inorder to restrict surface degradation such as corrosion andoxidation of the structural material or to thermally insulatethe structural material against the hot environment, therebyincreasing the efficiency of the turbine. However, in order toobtain accurate lifetime expectancies and performance of thecoatings system it is necessary to have a reliableunderstanding of the mechanical properties and failuremechanisms of the coatings. READ MORE

  2. 2. Mechanical modeling of granite subjected to contact loading

    Author : Hossein Shariati; Per-Lennart Larsson; Francois Hild; Mahdi Saadati; Timo Saksala; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid Mechanics; Hållfasthetslära;

    Abstract : The mechanical properties of Bohus granite subjected to contact loading is investigated based on experimental and numerical results. An elasto-plastic constitutive material model combined with a damage description is employed. The material model parameters are determined based on experimental results. READ MORE

  3. 3. New Experimental and Modelling Tools for Multiscale Characterization of Asphalt Mastic

    Author : Hassan Fadil; Denis Jelagin; Robert Ingemar Karlsson; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Building Materials; Byggnadsmaterial;

    Abstract : Asphalt mastics act as a binding phase in asphalt mixtures and their rheological properties strongly affect the performance of asphalt mixtures with respect to virtually all damage modes. In order to measure mastics properties, relevant for field performance, testing should be performed at size-scales representative for the morphology and material inhomogeneity of asphalt mixtures. READ MORE

  4. 4. A Tactile Resonance Sensor System for Detection of Prostate Cancer ex vivo : Design and Evaluation on Tissue Models and Human Prostate

    Author : Anders P Åstrand; Britt M Andersson; Ville Jalkanen; Olof A Lindahl; E. Göran Salerud; Umeå universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; elektronik;

    Abstract : Background The most common form of cancer among males in Europe and the USA is prostate cancer, PCa. Surgical removal of the prostate is the most common form of curative treatment. READ MORE

  5. 5. A flexible resonance sensor system for detection of cancer tissue : evaluation on silicon

    Author : Anders P. Åstrand; Britt Andersson; Ville Jalkanen; Olof A Lindahl; Umeå universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER;

    Abstract : The most common form of cancer among men in Europe and the US is prostate cancer. When a radical prostatectomy has been found necessary, it is of interest to examine the prostate, as tumour tissue on the capsule might indicate that the cancer has metastased. This is commonly done by a microscope-based morphometric investigation. READ MORE