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When I use Elastic material, can i fix certain section (ex, start point , end point) ?

Hi everyone. I want to construct hysteretic model. and then I wiil input to zerolength element. I used Elastic-Perfectly Plastic Material and parallel Material for multilinear model. I want to model softening section. When I input negative figure for gredient(tangent), An error is occured. Error is ...

thank you for your response. Mohammadf.
then... What should I do? equal DOF for zerolengthsection command??
ex) equal DOF 2 3 ??

Thank you for your response. I want to model eccentric steel brace frame. This model is one story - one bay Frame and shape of brace is inverted V with 2 metre eccentric : ---[1]---0----[2]----0---[3]--- |+++++/++++++++++\+++++| |++++/++++++++++++\++++| |++[4]+++++++++++++[5]++| |++/++++++++++++++++...

Hi everyone, I want to model eccentric steel brace frame. This model is 2D one story - one bay Frame and shape of brace is inverted V with 2 metre eccentric I try to use 'zero length Element' and 'equalDOF' for hysteretic behavior of Bracing I have a question : I think that 'equalDOF' affect global ...

hello , I want to model eccentric steel brace frame. This model is one story - one bay Frame and shape of brace is inverted V with 2 metre eccentric : ---[1]---0----[2]----0---[3]--- |+++++/++++++++++\+++++| |++++/++++++++++++\++++| |+++/++++++++++++++\+++| |++/++++++++++++++++\++| |+/++++++++++++++...

Dear all. I try to do "Pushdown analysis" I want to model concentrically braced frame (2D). I can define moment-rotation back bone of Beam, Column brased on FEME356 using NonlinearBeamColumnElement & ZeroLengthElement & Hysteretic Material. but, I don't know how to define hystereti...

Thank you for your help. fmk.
Your answer is valuable for me.
I appriciate you.

Dear fmk
Thank you for your reply.
But, I couldn't undertand your sectence whole.
If you don't mind, please give me an example??

I want to use hysteretic material for Bracing
how can I define [axial force - deformation] using hysteretic material and zerolength element.
I'm not want to define [moment-rotation] but [Axial force-displacement]

thank you.
thank you very much.
I Understand. thanks to you.

Thank you for your answering my question. The focus of my question is that Input parameter of 'hysteretic material' is only numerical value. i.e yield stress = 235Mpa (in Stress-strain relationship), yield moment = 446940000 Nmm (in Moment-rotation) there is no input unit system (Mpa, Nmm). Only num...

Hi dear all. I want to use Hysteretic materail for flexural members (Beam). Hysteretic material can uses 'stress-strain' or 'force-deformation (Moment-Rotation)' options My question is that Input parameter is only value (ex 123). there is no Unit(kNm or N/mm^2) How can Opensees distinguish between '...

please help me

I want to get Moment-Curvature ouput file. bur my column1 of output file is Load factor. I want to relpace Load factor of Column1 with Moment Value. Please help me. My script and output file is here.. Script : ##########################################################################################...