Plastic limit load of ellipsoidal pressure vessel head with nozzle under internal pressure loading
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Moscow State Industrial University Avtozavodskaya 16, 115280, Moscow, RUSSIA
Online publication date: 2014-03-07
Publication date: 2013-12-01
International Journal of Applied Mechanics and Engineering 2013;18(4):1263-1274
A new method and numerical procedure for determining the plastic limit load in an ellipsoid-cylinder intersection using the elastic-plastic finite element analysis are presented. The proposed method is based on the maximum criterion of the rate of change of the relative plastic work. For the elastic-plastic analysis of the nozzle connections the 2D finite element method and plasticity theory with strain hardening are used. The results of the comparison of the plastic limit pressure obtained on the basis of different known criteria and the proposed criterion are presented. A parametric study of ellipsoidal heads with a nozzle under internal pressure loading was performed. The effects of nondimensional geometric parameters of shell intersection on the plastic limit pressure are discussed.
ASME (2004): Boiler and Pressure Vessel Code. Sections II and VIII. - New York.
BSI. PD 5500 (2006): Specification for Unfired Fusion Welded Pressure Vessels. -London: British Standards Institution.
Camilleri D., Mackenzie D. and Hamilton R. (2006): Evaluating plastic loads in torispherical heads using a new criterion of collapse. - ASME PVP Conference, Vancouver, Canada, vol.3, pp.701-708. EN 13445 (2002): Unfired Pressure Vessels. Part 3: Design. European Committee for Standardisation (CEN), Brussels.
Gerdeen J.C. (1979): A critical evaluation of plastic behavior data and a unified definition of plastic loads for pressure components. - Welding Research Council Bulletin, No.254, pp.1-64.
Hsieh M.F., Moffat D.G. and Mistry J. (2000): Nozzles in the knuckle region of a torispherical head: limit load interaction under combined pressure and piping loads. - Int. J. Pressure Vessels and Piping, vol.77, No.13, pp.807-815.
Hsieh M.F., Moreton D.N., Mistry J. and Moffat D.G. (2002): Limit loads for knuckle-encroaching nozzles in torispherical heads: experimental verification of finite element predictions. - J. Strain Analysis, vol.37, No.4, pp.313-326.
Iliushin A.A. (1948): Plastisity. - Мoscow: GITTL.
Li H. and Mackenzie D. (2005): Characterising gross plastic deformation in design by analysis. - Int. J. Pressure Vessels and Piping, vol.82, No.10, pp.777-786.
Mackenzie D. and Li H. (2006): A plastic load criterion for inelastic design by analysis. - Trans. ASME, J. Pressure Vessel Technology, vol.128, No.1, pp.39-45.
Muscat M., Mackenzie D. and Hamilton R. (2003): A work criterion for plastic collapse. - Int. J. Pressure Vessels and Piping, vol.80, No.1, pp.49-58.
Nayak G.G. and Zienkiewicz O.С. (1973): Elasto-plastic stress analysis. A generalization for various constitutive relations including strain softening. - Int. J. Numer. Meth. Engn., vol.5, No.1, pp.113-135.
Skopinsky V.N. (2000): Stresses in ellipsoidal pressure vessel heads with noncentral nozzle. - Nuclear Engineering and Design, vol.198, pp.317-323.
Skopinsky V.N. (2008): Stresses in Intersecting Shells. - Moscow: Fizmatlit.
Skopinsky V.N. and Berkov N.A. (1994): Stress analysis of ellipsoidal shell with nozzle under internal pressure loading. - Trans. ASME, J. Pressure Vessel Technology, vol.116, No.3, pp.431-436.
Skopinsky V.N. and Berkov N.A. New criterion for the definition of plastic limit load in nozzle connections of pressure vessels. - Trans. ASME, J. Pressure Vessel Technology (in press).
Skopinsky V.N. and Smetankin A.B. (2003): Parametric study of reinforcement of pressure vessel head with offset nozzle. - Int. J. Pressure Vessels and Piping, vol.80, No.5, pp.333-343.
Skopinsky V.N. and Smetankin A.B. (2006): Modelling and stress analysis of nozzle connections in ellipsoidal heads of pressure vessels under external loading. - Int. J. Applied Mechanics and Engineering, vol.4, No.11, pp.965-979.
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