Search for dissertations about: "Fundamental creep models"
Showing result 1 - 5 of 10 swedish dissertations containing the words Fundamental creep models.
-
1. Fundamental models and testing of creep in copper
Abstract : Many sustainable technologies for energy production, for example, generation IV nuclear system, demand the use of materials operating at elevated temperatures for long duration of up to 60 years. Requirements that are even more stringent are found for creep exposed copper canisters for disposal of spent nuclear waste. READ MORE
-
2. Creep modeling and first-principles investigation of high-temperature alloys
Abstract : Stainless steels and nickel-based superalloys are materials that have been widely used to manufacture components servicing at high temperatures. Creep strength is one of the most important properties in such conditions. READ MORE
-
3. Calculating long-term settlement in soft clays - with special focus on the Gothenburg region
Abstract : Long-term settlement in clay constitutes an engineering challenge in road design and construction in areas with deep deposits of soft clay. Soil improvement and construction of building foundations or embankments can be quite complicated and expensive in such areas. Construction costs need to be balanced against high maintenance costs. READ MORE
-
4. Multiphysical analysis methods to predict the ageing and durability of concrete
Abstract : With the societal demand for sustainability and the increasing age of infrastructure, a crucial task for the civil engineering community is to improve the durability of concrete structures. This thesis aims to contribute to such development through theoretical studies using mathematical modelling and numerical simulations. READ MORE
-
5. Mechanical behaviour of a roller bearing steel : Strength differential effect, low temperature creep and propagation of short cracks
Abstract : Fatigue cracks in bearings either initiate from the surface or from an inclusion below the rolling contact surface. Then, short cracks start to propagate. Short crack grow at considerably faster rates than long cracks subjected to a nominally equivalent stress intensity factor range. READ MORE