Sökning: "hot cracking"
Visar resultat 21 - 25 av 40 avhandlingar innehållade orden hot cracking.
21. Development of a Morphology-based Analysis Framework for Asphalt Pavements
Sammanfattning : The morphology of asphalt mixtures plays a vital role in their properties and behaviour. The work in this thesis is aimed at developing a fundamental understanding of the effect of the asphalt morphology on the strength properties and deformation mechanisms for development of morphology-based analysis framework for long-term response prediction. LÄS MER
22. Surface modification of inorganic materials with graphene oxide : From solution to high-temperature synthesis
Sammanfattning : The use of graphene as an additive in materials is often challenging due to the agglomeration of the two-dimensional graphene sheets. An alternative additive is graphene oxide (GO), an oxidized form of graphene, which is easily dispersed in water. LÄS MER
23. Reliability-based Design Procedure for Flexible Pavements
Sammanfattning : Load induced top-down fatigue cracking has been recognized recently as a major distress phenomenon in asphalt pavements. This failure mode has been observed in many parts of the world, and in some regions, it was found to be more prevalent and a primary cause of pavements failure. LÄS MER
24. Fatigue evaluation of welded details – using the finite element method
Sammanfattning : The fatigue evaluation of welded details is generally based on the notion of nominal stress, using the classified S-N curves with corresponding fatigue classes for typical details. An approach of this kind should be used with extra caution to ensure that the load effects for components are accurately captured, because an ever-increasing number of welded details are resulting in a limited number of possible treatable design cases. LÄS MER
25. Process Understanding and Weldability of Laser-Powder Bed Fusion Manufactured Alloy 718
Sammanfattning : Laser-powder bed fusion (L-PBF) is an additive manufacturing (AM) process that involves building components by fusing fine metal powders using laser. There is no universal set of process parameters that can yield optimum results for all the different materials, geometries, and L-PBF machines. LÄS MER