Sökning: "Finite depth"
Visar resultat 1 - 5 av 76 avhandlingar innehållade orden Finite depth.
1. Mechanical Characterisation of Coatings and Composites-Depth-Sensing Indentation and Finite Element Modelling
Sammanfattning : In the past two decades depth-sensing indentation has becomea widely used technique to measure the mechanical properties ofmaterials. This technique is particularly suitable for thecharacterisation of materials at sub-micro or nano scale thoughthere is a tendency to extend its application to the micro ormacro scale. LÄS MER
2. Hydrodynamic Modelling for a Point Absorbing Wave Energy Converter
Sammanfattning : Surface gravity waves in the world’s oceans contain a renewable source of free power on the order of terawatts that has to this date not been commercially utilized. The division of Electricity at Uppsala University is developing a technology to harvest this energy. LÄS MER
3. Optimisation of Machining Operations by means of Finite Element Method and Tailored Experiments
Sammanfattning : The experimental approach has long been the main method to investigate the responses associated with metal cutting process such as cutting forces and temperatures and also to optimise the machining operations to accomplish higher productivity. In recent years, with advances in computing power of computers along with development of robust numerical methods such as Finite Element Method (FEM), it has been possible to simulate different machining process under operational conditions. LÄS MER
4. Optimisation of Machining Operations by means of Finite Element Method and Tailored Experiments
Sammanfattning : Traditionally, costly experimental procedures have been followed in industry to optimise the machining operations to secure the maximum efficiency in production line, while the functional requirements of the machined surfaces are fulfilled. In recent years, development of robust numerical techniques such as Finite Element Method (FEM) and advances in computing capacity of computers have made it possible to simulate the machining operations under operational conditions. LÄS MER
5. Finite Element Analysis of Case-Hardened Roller Bearings
Sammanfattning : This thesis deals with the material modelling of case-hardened bearing steel, with special reference to hardened roller bearing components. The result of a case-hardening process is a hardened component with substantially improved material properties within a restricted region beneath the heat-treated surface. LÄS MER