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Inflation of a cylinder
Posted 15 apr 2012, 05:14 GMT-4 Structural Mechanics Version 4.2a 0 Replies
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I m trying to simulate a very known benchmark problem, inflation of a thin cylinder due to an internal pressure (the problem is time dependent). In order to so, i used Shell physics and have modeled only a quarter of the cylinder while using the appropriate symmetrical conditions. The cylinder height is 5, thickness is 0.1, Module Young is 1.2*10^6 and Poisson ratio is 0.495 (it is isotropic). Another B.C is that the lower and upper edges cant move in the Z direction.
According to theory, when applying an increasing internal pressure i should receive a convergence in the graph of the internal pressure vs. the ratio between the deformed radius and the original one. unfortunately, i dont get this desired convergence in this graph but just the opposite.
thx
Hello Iftah Nudel
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