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February 6, 2013 8:50pm UTC

Postprocessing in cyclindrical coordinates

I am doing a plane strain analysis of a pipe with a crack in it.

I would like to get the stress components in the cyclindridcal coordinate system (radial, hoop stress) rather than in the cartesian coordinate system (x & y stress components).

There seems to be do obvcious way of doing this.

Is there anyone who can suggest something?

Thanks,
--
Arthur Rupel

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February 21, 2013 7:49pm UTC in response to Henrik Sönnerlind

Re: Postprocessing in cyclindrical coordinates

I am using plastic deformation-isotropic hardening-von mises stress, tangent modulus.--
There is no problem in defining the cyc coord in definitions. However I cannot find anyway of stating this with the material properties that I am using. This is not a linear elastic material.

Thanks
Arthur Rupel

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March 5, 2013 9:57pm UTC in response to Henrik Sönnerlind

Re: Postprocessing in cyclindrical coordinates

I defined the cyclindrical coordinate system in definitions.

In the linear elastic option, the only coordinate system allowed in the global. There does not seem to be a way of changing this.

When I try to plot r, theta stresses in the cyclindrical system, all I get are the x & y stresses-even in the changed local system.

There has to be a way for results to see that I want cyclindrical stresses, but I cannot find it.

Thanks,

--
Arthur Rupel

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March 6, 2013 12:21pm UTC in response to Art

Re: Postprocessing in cyclindrical coordinates

The reason is that only coordinate systems which belong to the material frame can be selected for the material definition. So if you change the setting in the coordinate system from Spatial to Material, then it will show up.

Regards,
Henrik

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