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From:
M. R. Khoshravan and A. Rahmani (University of Tabriz, Faculty of Mechanical engineering, 51666 Tabriz, Iran, rkhosh@tabrizu.ac.ir ), “Numerical analysis of the effect of torispherical head on the buckling of pressure vessels”, 7th International Conference on Modern Practice in Stress and Vibration Analysis, Journal of Physics: Conference Series 181 (2009) 012040, doi:10.1088/1742-6596/181/1/012040
ABSTRACT: Effect of torispherical head on the buckling of pressure vessels was investigated by finite element (FE) method. The FE method with use of nonlinear buckling analysis was applied to predict the critical buckling Load. The influences of geometrical parameter such as thickness, knuckle radius and diameter of cylindrical part, on the buckling of heads have been studied. The Arc Length method which can control the load level, the length of the displacement increment and the maximum displacement was been used. By verification performed with the European Convention for Constructional Steelwork (ECCS) code, it was confirmed that the nonlinear buckling analysis could assure accurate results for buckling strength. It was shown that geometrical imperfections had little effect on buckling strength.
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