Search for dissertations about: "Asperity"
Showing result 1 - 5 of 29 swedish dissertations containing the word Asperity.
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1. Modelling of surface initiated rolling contact fatigue crack growth using the asperity point load mechanism
Abstract : .... READ MORE
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2. On the asperity point load mechanism for rolling contact fatigue
Abstract : Rolling contact fatigue is a damage process that may arise in mechanical applications with repeated rolling contacts. Some examples are: gears; cams; bearings; rail/wheel contacts. The resulting damage is often visible with the naked eye as millimeter sized surface craters. READ MORE
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3. The effect of scale on the morphology, mechanics and transmissivity of single rock fractures
Abstract : This thesis investigates the effect of scale on themorphology, mechanics and transmissivity of single rockfractures using both laboratory and in-situ experiments, aswell as numerical simulations. Using a laboratory 3D laserscanner, the surface topography of a large silicon-rubberfracture replica of size 1m x 1m, as well as the topography ofboth surfaces of several high-strength concrete fracturereplicas varying in size from 50mmx50mm to 200mm x 200mm, werescanned. READ MORE
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4. On fatigue crack growth modelling of surface initiated rolling contact fatigue using the asperity point load mechanism
Abstract : Load transfer in applications or between machine components is generally achieved through contact. In case of recurrent high contact loads in combination with a rolling motion, i.e. with a relatively small amount of slip, the contact surface may eventually suffer from rolling contact fatigue (RCF). READ MORE
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5. Numerical models to simulate wear and friction-induced heating in rough surface contacts
Abstract : The study of friction and wear is a crucial element in the effort to reduce carbon footprint in technology. It is evident that friction and wear are responsible for a significant amount of global energy losses, emphasizing the need for research on the topic. READ MORE