On 01/25/2017 05:37 AM, Jean-Paul Pelteret wrote:
Dear Lam,
There are a number of ways that you can do this. One approach would be to
define a class that derives from the function class
<https://www.dealii.org/developer/doxygen/deal.II/classFunction.html>; this is
alluded to in step-8
<https://www.dealii.org/developer/doxygen/deal.II/step_8.html#ElasticProblemassemble_system>,
but here the parameters are considered constant. For this approach you would
need to describe the material parameters by position, rather than material_id.
Indeed, this is what step-6 does. (For the Laplace equation, but if you see it
happen there, you will know how it works for the elasticity equation as well.)
Best
W.
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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