Conditional Boundary Condition

[GastónGarcía]

Hi,

I'm trying to solve an elastic problem and need to impose a BC that depends on the position. I have an issue with the MATC syntax. I want to tell elmer to impose a displacement over a surface if the x-position is larger than... and smaller than... and can't find the exact syntax for that. I've looked for in the documentation and didn't find it. Could you please tell me how to do it? The line I entered is:

Displacement 2: Coordinate Variable 1; Real MATC; if (tx>2)&(tx<6) (0.2*tx) else (-0.2*tx)

Could you tell me where the error is?

Thanks a lot.

Gastón

[mzenker]

Hi,

try

Displacement 2 = Variable Coordinate 1; Real MATC "if (tx>2)&(tx<6) (0.2*tx); else (-0.2*tx)"

I did not test it, though.

HTH,

Matthias