hysteretic material with gap

[cllhit]

hello everyone
I need a material for a spring in OpenSees with the following characteristics
1, with a initial gap (negative or positive )
2, the behabiour is same as hysteretic material when the displacements greater than gap
how can i get it ?

[susan]

you can use uniaxialMaterial ElasticPPGap

[vesna]

You will have to create a series material that will consist of ElasticPPGap and Hysteric material.

[cllhit]

thank you for your reply, i will try it.