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axisymmetric blade + thickness

[ Edited ]

i have an axisymmetric blade of length 90 mm. to the top of the blade attaches a section which has a thickness of 600mm. how do i model this in nx? 

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Accepted by Ganesh_S (Community Manager)
‎08-26-2015 04:32 AM

Re: axisymmetric blade + thickness

Areas of an axisymmetric model that to not sweep through a full 360 degrees would typically be modeled with plane stress elements. Thickness would be set to represent the portion of the swept volume that actually contains material.

Re: axisymmetric blade + thickness

It's unclear from your question whether the elements are to be constant thickness or variable thickness (axisymmetric) based on radius.  For true axisymmetry you would want to define a thickness field as a function of radius if you are using plane stress elements, or else construct a 3D "wedge" model.  If you're looking at a bladed hub segment, our experience is that the hub is represented as axisymmetric (radially dependent thickness plane stress) and the blade is represented as constant thickness plane stress or a distribution based on its actual thickness.