Partial damping through regions

[dgugalde]

Hi everyone,

I'm using zero length elements to define the plastic hinges in a structure. I don't want their stiffness to contribute to the damping matrix so when I define them I use "-doRayleigh 0" (which is the default any way). Later on my script I define the Rayleigh damping using regions, but the zero length elements are included in those regions.

Will the stiffness of the hinges contribute to damping or not?

in other words...

Does the damping definition through regions overwrite "doRayleigh" parameter of the zero length element?

Thanks in advance,
David

[fmk]

the zerolength hinges will contribute nothing when damping is turned off irrespective if damping is specified through the rayleigh or region command.

[dgugalde]

Thank you so much!