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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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Uniform compression for a biomedical stent.

Posted 06.05.2015, 09:06 GMT-4 Geometry, Materials, Structural Mechanics Version 4.4 2 Replies

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Dear fellow Comsol-users:

I designed a biomedical stent (see pictures attached) and I am now trying to apply a uniform compression across its outer 'cylinder' surface in order to reduce its diameter. I am using the 4.4 version and the Structural Mechanics module. Comsol doesn't let me divide the outer surface and apply surface forces. Thereby, I tried to apply line forces based on the arcsin and arccos of the (y/x), but without any success.

Do you have any idea what surface loads or boundary conditions I have to apply in order to uniformly compress the stent in such manner that its cylinder-diameter is reduced?

Thank you alot beforehand.
2 Replies Last Post 06.05.2015, 10:35 GMT-4
Edgar J. Kaiser Certified Consultant
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Posted: 9 years ago 06.05.2015, 10:30 GMT-4
Dimitrios,

A radially directed body load would probably achieve the desired effect as well.

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Dimitrios, A radially directed body load would probably achieve the desired effect as well. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com
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Posted: 9 years ago 06.05.2015, 10:35 GMT-4
Thanx you very much. How can I achieve that? By setting a cylindrical reference axis system?
Thanx you very much. How can I achieve that? By setting a cylindrical reference axis system?

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