Modeling LED energy dissipater behavior

[Soydan]

Dear Seismosoft,
We’re performing an experimental study on a LED type energy dissipater to find out its axial force-axial displacement behavior. The axial force-axial displacement behavior that we had is propagating through the lateral axis which is also propagates through the vertical axis with increasing axial force and axial displacement. In other words, with different axial displacement levels we get different yield force values for the LED.
In the link element part of the Seismostruct there is a bilinear kinetic link element that can be used to represent LED type energy dissipater. This element has the parameters which are initial stiffness (Ko), yield force (Fy) and post-yielding hardening ratio (r). For representing our LED behavior we need constant initial stiffness and post yielding hardening ratio but varying yield force with varying displacement. We want to know if any of link elements of Seismostruct can represent this behavior.
I'm also sending an e-mail to info@seismosoft.com with the same subject title including the relationships that we obtained.
Yours Sincerely.

[seismosoft]

Dear Soydan,

Apologies for the significant delay with which we are responding. We can confirm that we have indeed been able to reproduce the behaviour of your dissipators using a link element with a 'smooth' response curve.

Seismosoft Support