Calculation of Tensile Stress

ashtonJ · October 8, 2014, 23:45

Dear all,
I am doing moving wall modelling in an artery. I would like to calculate the tensile stress over the artery wall using the below formulation.

(Pressure*radius)/wall thickness

I defined a time-dependant expression by which the middle segment of the artery is compressed. Local radius of the artery is needed for tensile stress calculation and I don't know how to find the radius.

Any help would be highly appreciated.
AshtonJ

singer1812 · October 9, 2014, 09:21

Need clarification. You want to do this in post processing or while the job is running?

ashtonJ · October 11, 2014, 18:20

Dear Edmund. I prefer to do it in post processing if possible. However, CFX-Pre is also OK. I just need to have an idea how to do that either in post-processing or in CFX-Pre. Thanks

October 8, 2014, 23:45	Calculation of Tensile Stress	#1
ashtonJ Senior Member Ashkan Javadzadegan Join Date: Sep 2010 Posts: 255 Rep Power: 16	Dear all, I am doing moving wall modelling in an artery. I would like to calculate the tensile stress over the artery wall using the below formulation. (Pressure*radius)/wall thickness I defined a time-dependant expression by which the middle segment of the artery is compressed. Local radius of the artery is needed for tensile stress calculation and I don't know how to find the radius. Any help would be highly appreciated. AshtonJ

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October 9, 2014, 09:21		#2
singer1812 Senior Member Edmund Singer P.E. Join Date: Aug 2010 Location: Minneapolis, MN Posts: 511 Rep Power: 20	Need clarification. You want to do this in post processing or while the job is running?

October 11, 2014, 18:20		#3
ashtonJ Senior Member Ashkan Javadzadegan Join Date: Sep 2010 Posts: 255 Rep Power: 16	Dear Edmund. I prefer to do it in post processing if possible. However, CFX-Pre is also OK. I just need to have an idea how to do that either in post-processing or in CFX-Pre. Thanks