Hi Rahemi,
It sounds like you want the Functions::ParsedFunction and FunctionParser
classes. This allows you to write functions in a parameter file which
can then be evaluated at run time, for example at the quadrature points.
This can handle vector valued functions too.
The use is covered in step-34
http://www.dealii.org/developer/doxygen/deal.II/step_34.html
and the classes
http://www.dealii.org/developer/doxygen/deal.II/classFunctionParser.html
http://www.dealii.org/developer/doxygen/deal.II/classFunctions_1_1ParsedFunction.html
John
On 01/05/12 22:12, Hadi Rahemi wrote:
Hi,
I am using step-44 as base for my elasticity problem and I need define
material constants (using a class or template) as a function of global
position. Is there anyway to use ParameterHandler to use interpolated
value of these constants (i.e at each quadrature point) during
the run-time? In other words I want the elasticity tensor to have
different values in each quadrature point.
Hadi Rahemi
--
Ph.D. Candidate,
Department of Biomedical Physiology and Kinesiology,
Simon Fraser Unniversity, 8888 University Drive,
Burnaby, BC, V5A 1S6.
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