Local axis

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jdopazo
Posts: 7
Joined: Sun Jun 07, 2015 3:41 pm

Local axis

Post by jdopazo »

How I can assign an automatic local axis to node. And if it is not possible to node, then to element
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escolano
Posts: 1918
Joined: Sun Sep 05, 1982 10:51 pm

Re: Local axis

Post by escolano »

An 'automatic local axes' is a local axes system x',y,'z' that could be automatically defined based on geometry properties:
e.g. for a curve the x' axis local tangent to the curve,
or for a surface the z' local axis normal to the surface
(and the other two local axis arbitrary following some rule)

For a point or node there is not any 'special' direction to be used as 'automatic', this is the cause that you cannot assign it to these entities.

For mesh elements it is the same: can be applied to line elements or surface elements, but not to volume or 'only-point' 0D elements
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