Thermal/stress analyses of the EBT-SA split-mirror coil [electronic resource]
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| Online Access: |
Online Access (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Oak Ridge, Tenn. : Oak Ridge, Tenn. :
Oak Ridge National Laboratory. ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
1983.
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| Subjects: |
| Abstract: | A proposal was made in December 1978 to replace some of the standard mirror coils on ELMO Bumpy Torus-Scale (EBT-S) with coils which had the center windings removed, called split-mirror coils. The advantages of such a replacement were: diagnostic measurements could be made in regions in real space and in velocity space which would not otherwise be accessible, and experiments could be carried out in the high magnetic field region. A detailed thermal/stress analysis of the epoxied copper cooling tube was performed, and it was found that with the conditions of case cooling, tensile stresses almost twice ultimate would be induced in the epoxy that bonds the cooling copper tube to the aluminum case. As a result, the epoxy would fail. A new cooling scheme was designed, and temperatures and stresses were calculated. The temperatures and gradients were drastically reduced, and the maximum stress was found to be about one-half the yield stress. It was found (using fracture mechanics analysis) that the new nonepoxied cooling scheme would ensure no failures. |
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| Item Description: | Published through SciTech Connect. 06/01/1983. "ornl/tm-8364" "DE83013856" Mayhall, J.A.; Byington, G.A.; Forseman, J.W.; Hammonds, C.J.; Haste, G.R.; Johnson, R.L.; Livingston, J.L. |
| Physical Description: | Pages: 64 : digital, PDF file. |