Dear All libMesh uses,
I want to apply traction boundary condition on two of the surfaces of my
geometry. As far as I know, There are two methods
for defining such a boundary condition: *Using penalty method* and
*side_time_derivative method*. I have a couple of questions:
1- Which method is more straightforward for defining boundary
condition(traction) in libMesh?
2- I have searched different examples in libMesh and I could not find
any case that has used side_time_derivative method(for example defined
in fem-ex3). Is there any example illustrates how can I call the
mentioned method in the code? Where should I call it?How?
In the example fem3 example, the method need two inputs:
*bool ElasticitySystem::side_time_derivative (bool request_jacobian,**
** DiffContext & context)*
*FEMContext & c = cast_ref<FEMContext &>(context);
// If we're on the correct side, apply the traction
if (c.has_side_boundary_id(BOUNDARY_ID_MAX_X))
{
*
*......*
How and where should I use this method in the code to have a traction
boundary condition?
Thank you everybody!
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