Stress analysis on rectangular cross-sectional ring headers
- Miura Inst. of Research and Development, Ehime (Japan)
- Miura Boiler WEST, Inc., Wheeling, IL (United States)
- Kyushu Inst. of Tech., Iizuka (Japan). Dept. of Mechanical System Engineering
- Kyushu Univ., Fukuoka (Japan). Faculty of Engineering
Boilers are usually designed based on Construction Code of Boilers in their respective countries or based on the ASME Code. However, for rectangular cross-sectional ring headers, which are used in many small-sized boilers, few theoretical stress analyses have been proposed. For rectangular cross-sectional ring headers, the authors` theoretical stress analysis is presented to agree with actual stresses by measurement with strain gages. Therefore, this analytical method is applicable for similar rectangular cross-sectional ring headers. When the aspect ratio (length of two cylinders/radius difference between two cylinders) is more than three, moments originating at the end of finite long cylinders and tangential stresses on the half-length of both cylinders are almost the same as values from infinitely long cylinders. Regarding the welds between flat cover plates and cylinders, cover plate designs can be remarkably thinner by changing the weld shape, that is, by using T-joint weld with a single-bevel groove, than compared to Type (i) in PG-31 of ASME Code.
- OSTI ID:
- 131618
- Journal Information:
- Journal of Pressure Vessel Technology, Vol. 117, Issue 4; Other Information: DN: Presented at Winter Annual Meeting, Chicago, IL (US), November 6--11, 1994; PBD: Nov 1995
- Country of Publication:
- United States
- Language:
- English
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