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Initial stress in polar coordinates
Posted Sep 26, 2011, 7:34 a.m. EDT Studies & Solvers, Structural Mechanics Version 4.2 0 Replies
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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.
Hello Dominic Clarke
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