I am using deal.ii to solve a 3D solid mechanics problem which uses
p::d::triangulation.
I am solving equilibrium equations to solve for the displacement in the domain.
The domain of the problem is a cylinder with the z-axis aligned along the axis
of the cylinder.
To avoid the warping, I want constraints such that
displacement in the z direction is same for all nodes on the +z surface.
Choose one degree of freedom for the vertical displacement on one processor
(say, it is u_42), and then on all other processors you want to go through all
vertical displacements at the boundary in question and set
u_i = u_42
This is a straightforward constraint to add to the ConstraintMatrix class.
Take a look at step-11 to see how constraints are added.
Best
W.
--
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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