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An investigation into the weld integrity of the head–to–skirt junction on tall distillation columns / L. Brink

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dc.contributor.author Brink, Lize en_US
dc.date.accessioned 2011-10-03T10:24:35Z
dc.date.available 2011-10-03T10:24:35Z
dc.date.issued 2010 en_US
dc.identifier.uri http://hdl.handle.net/10394/4877
dc.description Thesis (M.Ing. (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2011.
dc.description.abstract This 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.publisher North-West University
dc.subject Fatigue test en_US
dc.subject Fatigue life en_US
dc.subject Head-to-skirt weld en_US
dc.subject Pressure vessel support en_US
dc.subject Weld en_US
dc.subject Local weld geometry en_US
dc.subject Nominal-Stress-Approach en_US
dc.subject Effective-Notch-Stress-Approach en_US
dc.subject Stress-Life-Approach en_US
dc.subject Vermoeidheidstoetse en_US
dc.subject Kolom ondersteuning en_US
dc.subject Sweis en_US
dc.subject Lokale sweis geometrie en_US
dc.subject Drukvat ondersteuning en_US
dc.subject Nominale-Spannings-Metode en_US
dc.subject Effektiewe-Keep-Spannings-Metode en_US
dc.subject Spannings-Lewe-Metode en_US
dc.title An investigation into the weld integrity of the head–to–skirt junction on tall distillation columns / L. Brink en_US
dc.type Thesis en_US
dc.description.thesistype Masters en_US


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    This collection contains the original digitized versions of research conducted at the North-West University (Potchefstroom Campus)

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