Affiliation:
1. Cracow University of Technology
Abstract
Application of flat welded ends with stress relief grooves in high-pressure vessels is a common alternative to use of dished vessel ends. It is well established and follows calculation rules given in codes: EN-12952-3 [1], EN-13445-3 [2], or in ASME code [3]. However the calculation rules do not give any definite answer what should be the choice of parameters defining a circular stress relief groove, for example, position of the groove and its radius. Usually the choice of them relies on engineering practice. The present paper clearly shows the influence of this choice on stress concentration in the cylinder-endplate junction area. The results of numerical study are verified in experimental investigations performed for a cylindrical high-pressure vessel.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference14 articles.
1. British-Adopted European Standard EN-12952-3: 2001, Water-tube boilers and auxiliary installations. Design and calculation of pressure parts, May-(2002).
2. European Standard EN-13445-3: 2202, Unfired pressure vessels – Part 3: Design, May-(2002).
3. Companion Guide to the ASME Boiler and Pressure Vessel Code, K.R. Rao (Ed. ), ASME Press New York, (2006).
4. R. Preiss, Stress concentration factors of flat end to cylindrical shell connection with a fillet or stress relive groove subject to internal pressure, Int. J. Press. Vessel and Piping, 73 (1997) 183-190.
5. R. Preiss, F. Rauscher, D. Vazda, J.L. Zeman, The flat end to cylindrical shell connection – limit load and creep design, Int. J. Press. Vessel and Piping, 75 (1998) 715–726.
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