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Negative stiffness in a link element

Posted: 07 Jan 2012, 00:16
by maysamr
Hello,
TO model a shear key in bridge abutment I have to define a trilinear link in F2 direction, but the third stifness is negative to take acount for the break in shear keys after a defined force limit. Which link type I should use???
Maysam Reshad

Re: Negative stiffness in a link element

Posted: 14 Jan 2012, 11:03
by maysamr
29 reads and still no answer? :( Plz help. My email is meysamr@yahoo.com
for further information plz email me :(

Re: Negative stiffness in a link element

Posted: 17 Jan 2012, 08:59
by maysamr
I guess I should ask as this " I want to model a trilinear linear link with final permanent deformation that not came back to origion"
What should I do? :( plz help!!!

Re: Negative stiffness in a link element

Posted: 17 Jan 2012, 12:10
by seismosoft
Dear Maysam Reshad,

If you really need/want to model the total failure of an element, we suggest you to make use of the 'Deactivation Time/L.F.' feature.

Regards,

Seismosoft Support