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Initial stress in polar coordinates

Posted 2011年9月26日 GMT-4 07:34 Studies & Solvers, Structural Mechanics Version 4.2 0 Replies

Dominic Clarke
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Hello,

I have a problem in which I am looking for the eigenmodes of a spherical membrane under tension.

I want to define the initial stress such that it is a constant magnitude (S) in the radial direction.

The way I think I should set this up is with the stress matrix in polar cylindrical polar coordinates equal to:

S 0 0
0 0 0
0 0 0

multiplied by the unit vectors

r (radial unit vector)
theta (angle from x axis)
z (unit vector out of the plane)

How do you implement this in comsol as a 2d problem?
I hope this makes sense.

Thankyou.
0 Replies Last Post 2011年9月26日 GMT-4 07:34
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