I am trying to simulate the current density in a piezoelectric device.
The geometry is a simple rod with a fixed boundary (also ground boundary) and a surface load on the opposite boundary. I can easily get the displacement and voltage, due to the applied force.
If I plot the current density (normal or in any direction) the result is simply zero... due to the polarisation of the structure (due to the applied force) the current cannot be zero?
Secondly, I want to add resistance to the material properties, how can I do this? It is not a required parameter to solve the equations, I guess I have to alter the equations and add the resistance on that level?
The geometry is a simple rod with a fixed boundary (also ground boundary) and a surface load on the opposite boundary. I can easily get the displacement and voltage, due to the applied force.
If I plot the current density (normal or in any direction) the result is simply zero... due to the polarisation of the structure (due to the applied force) the current cannot be zero?
Secondly, I want to add resistance to the material properties, how can I do this? It is not a required parameter to solve the equations, I guess I have to alter the equations and add the resistance on that level?