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When to use solid vs shell elements?

Question asked by Darrin Dame on Feb 2, 2010
Latest reply on Feb 2, 2010 by 1-E9V5A2

I have been reading post on this subject and something is bothering me.  Is there a rule of thumb for when you use a shell over a solid mesh?  Looking at the Solidworks Simulation, the definition of a thin shell is a thickness to span ratio less than 0.05.  The normal definition of a solid or plate element is mid-surface is flat and a shell has curvature. Do you always use a shell element in Simulation if the thickness to span ratio is less then 0.05?