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Thank you sir,
by removing the damaged element and running again analyzing start from the begining (first step ofloading ), but the reality is eliminating that damaged element during the analysis ,because in that case the scope of analysis is nonlinearity.

Dear friends, I wanna know in a case that a structure is analyzed under a dynamic loading and an element damages during the loading ,but the global structure still remians stable ,If loading is redistributed on other elements and the analysis continu or damaging of that element make the analysis cea...

Sorry,
which element is proper for modelling multy-layer slab with defferent materials . For example steel-concrete-steel pannel (scs)
Thanks

sorry, How can i get the place of the hinge in a nonlinearbeamcolumn element?
Thanks

I want to write some program that link to opensees , and I know only matlab language , Can somebody help me How can i learning TclEditor commands? or if can I work with matlab?

what is the $dDELTA (displacement damage) or $dE (energy damage) in the uniaxialMaterial Hyster_1 command?and what is the meaning of E(ultimate) that is in the manual?

Thanks for your help , that must be a good idea.

How can we define a target drift for our elements inwhich the analyze stops ? ;this means that "when an element damages based on the specific drift (perfomace based design) , the run will stop."
Thanks

thanks for your help , but i want to know if we can make the stiffness zero?because i want to have pure damper.

How can I model a viscose damper as an element between two nodes with no stiffness?

How can I impose a load with a time history to an arbitrary node ?
And can we define dynamic uniform load with an arbitrary time history?
Thanks