How can i make the steel fiber to be failure when its strain

neallee · Post by **neallee** » Sat Jul 11, 2009 5:09 pm

How can i make the steel fiber to be fail when its strain is larger then 1%?
Steel01 and steel02 both illustrated as there is no material failure .
Since that, the behavior of some steel structure model are not like a real one in the failure nonlinear region.

silvia · Post by **silvia** » Sat Jul 11, 2009 7:20 pm

try hysteretic material.
or look up the min/max command here on the forum, i odn't think i have updated that in the manual.

neallee · Post by **neallee** » Sat Jul 11, 2009 10:59 pm

thankyou!
i have search the forum.

min/max command ? Isn't it the tcl inherent command in tcl mathematic lib, or the additional command implemeneted by Opensees?

Otherwise, are you meaning the max/min material? i dont think it is a solution for the issue of cut off the strain larger than 1%.

By the way, except the hystereic material in openSees, the materials, like steel03,steelMP,reinforcingsteel and hardening, do not consider the failure when the strain become larger than 1%, does they??

i will try the hysteretic material first and wait for your suggestion, thank you!

silvia · Post by **silvia** » Mon Jul 13, 2009 7:56 am

yes, i meant the minmax material.
if that doesn't do it for you, yes, use hysteretic.