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dc.contributor.authorBrink, Lizeen_US
dc.date.accessioned2011-10-03T10:24:35Z
dc.date.available2011-10-03T10:24:35Z
dc.date.issued2010en_US
dc.identifier.urihttp://hdl.handle.net/10394/4877
dc.descriptionThesis (M.Ing. (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2011.
dc.description.abstractThis study addresses the fatigue life of the head–to–skirt welds of tall distillation columns. Fatigue tests were done on two types of weld geometries which approximate the head–toskirt configurations. From the fatigue tests it was determined that the fatigue life of the experimental samples can be substantially improved by applying weld build–up between the head and the skirt. The expected fatigue life of the test samples was determined by way of calculation employing the so called Nominal–Stress–Approach, the Effective–Notch–Stress–Approach and the Stress–Life–Approach. For both the Nominal–Stress–Approach and the Effective–Notch–Stress–Approach the predicted fatigue life was found to be overly conservative compared to the experimental results. The Stress–Life–Approach predicted the fatigue life to within a factor of 1.3 for both the geometries under investigation when displacements due to welding are taken into account. If displacements due to welding is omitted this factor is increased, for the geometry without weld build–up, to 2. For the geometry with weld build–up the factor remains 1.3.en_US
dc.publisherNorth-West University
dc.subjectFatigue testen_US
dc.subjectFatigue lifeen_US
dc.subjectHead-to-skirt welden_US
dc.subjectPressure vessel supporten_US
dc.subjectWelden_US
dc.subjectLocal weld geometryen_US
dc.subjectNominal-Stress-Approachen_US
dc.subjectEffective-Notch-Stress-Approachen_US
dc.subjectStress-Life-Approachen_US
dc.subjectVermoeidheidstoetseen_US
dc.subjectKolom ondersteuningen_US
dc.subjectSweisen_US
dc.subjectLokale sweis geometrieen_US
dc.subjectDrukvat ondersteuningen_US
dc.subjectNominale-Spannings-Metodeen_US
dc.subjectEffektiewe-Keep-Spannings-Metodeen_US
dc.subjectSpannings-Lewe-Metodeen_US
dc.titleAn investigation into the weld integrity of the head–to–skirt junction on tall distillation columnsen
dc.typeThesisen_US
dc.description.thesistypeMastersen_US


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  • ETD@PUK [6405]
    This collection contains the original digitized versions of research conducted at the North-West University (Potchefstroom Campus)

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