Search found 4 matches

by sjbrandenberg
Mon Mar 12, 2007 11:02 am
Forum: Documentation
Topic: Coupled section aggregator
Replies: 2
Views: 5092

I'll take that as a no.

Your suggestion to try using the fiber model is interesting. I might be able to do it with a fiber model as a roundabout indirect way of actually implementing a new material. Otherwise I'll try my hand at the new material to use with a zeroLength surface.
by sjbrandenberg
Thu Mar 08, 2007 10:37 pm
Forum: Documentation
Topic: Coupled section aggregator
Replies: 2
Views: 5092

Coupled section aggregator

Has anybody implemented a section aggregator that takes a 1-D uniaxial material and converts it to a coupled 2-D section with a circular yield surface? This would be similar to the bi-directional section, but instead of inputting $E, $sigY, $Hiso, and $Hkin, we could input $matTag for some generic u...
by sjbrandenberg
Fri Aug 11, 2006 1:48 pm
Forum: Feature Requests/Future Directions
Topic: ViscoElastic nDMaterial
Replies: 1
Views: 5991

I just learned that you can assign different Rayleigh damping parameters to different elements using the region command. Thanks to Zhaohui Yang for pointing me in the right direction.

-Scott
by sjbrandenberg
Mon Jul 17, 2006 11:49 am
Forum: Feature Requests/Future Directions
Topic: ViscoElastic nDMaterial
Replies: 1
Views: 5991

ViscoElastic nDMaterial

I am wondering if anyone has coded a visco-elastic nDMaterial. I am trying to do equivalent linear site response for soil in a way that is similar to SHAKE. That requires specifying a shear modulus and damping ratio for each soil type, hence global Rayleigh damping in combination with an ElasticIsot...