Sökning: "Creep"
Visar resultat 31 - 35 av 214 avhandlingar innehållade ordet Creep.
31. Shrinkage and Related Properties of Alkali-Activated Binders Based on High MgO Blast Furnace Slag
Sammanfattning : Concrete is the second most used material in the world just after water. A drawback is that it is mostly based on Portland cement, which has an extremely high carbon footprint reaching a staggering 900 kg/tonne. The carbon dioxide emissions related to the production of the Portland cement accounts for nearly 8 % of the global total. LÄS MER
32. Development of a new generation of 12% Cr steels: Z-phase strengthened steels
Sammanfattning : Fossil-fuel fired steam power plants provide more than 60% of the electricity generated worldwide, and account for about one third of the global CO2 emissions. The thermal efficiency of the steam power plants is limited by the maximum allowed steam temperature and pressure, which in turn are determined by the long-term corrosion and creep resistance of economically viable materials. LÄS MER
33. Multiphysical analysis methods to predict the ageing and durability of concrete
Sammanfattning : 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. LÄS MER
34. Anisotropic mechanical behaviors and microstructural evolution of thin-walled additively manufactured metals
Sammanfattning : Additive manufacturing (AM), also known as 3D printing, is a concept and method of a manufacturing process that builds a three-dimensional object layer-by-layer. Opposite to the conventional subtractive manufacturing, it conquers various limitations on component design freedom and raises interest in various fields, including aerospace, automotive and medical applications. LÄS MER
35. On Rate-Dependency of Gothenburg Clay
Sammanfattning : On Rate-Dependency of Gothenburg ClayMATS OLSSONDepartment of Civil and Environmental EngineeringDivision of GeoEngineeringChalmers University of TechnologyABSTRACTLong-term settlements in clay constitute a major engineering challenge in areas with deep deposits of soft clay. This dissertation aims to extend the understanding and theoretical framework of rate-dependent soil behaviour, so that uncertainties in predictions of long-term settlements are significantly reduced. LÄS MER