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Dear Frank
How may I send you my file? It is too large to paste here.

Thanks

Dear fmk, I am developing a custom material. Since I failed to build openseesMP with the new material included, I am trying to introduce my material as a supplementary dll to OpenSeesMP version 2.4.5. The material seems to load and run successfully but after the first round of model building, analyz...

Hi Frank.
Thanks for your answer. Is what you mentioned correct for all types of analyses or just for the one being questioned in above post?
What do you exactly mean by "correction step"?

Hi.
You can find the related descriptions and instructions about joint2d in Altoontash dissertation which can be found on the web.

hi.
the problem is clear. Joint2d nodes must represent nodes at four edges of panel zone, they shall not fall on each other. you must use the dimensions of your panel zone.
--------*3

4*-------------*2

--------*1

Hi.
Could you post your script to see what the problem exactly is?

Hi all.
I'm trying to model a post tensioned structure in opensees. could anybody tell how i can do it?
thank you very much

the link for mentioned source is here:
opensees.berkeley.edu /OpenSees/doc/ Altoontash_Dissertation.pdf

the joint2D element is a useful element for modeling the panel zone as well as the rotational deformability of beam ends. as this element is not described in documentation neither in pdf nor in HTML format , I thought it would be helpful for other users to put the parameters of this command: element...

Thank you Mr McKenna.
I will read the document and call you for further help.

Good Luck

Hi,
could you help me how I can link external routines dynamically to my code or where I can find some document about this matter to read?

Thanks

Thank you.

I could find the answer.
the formulation given in the manual for calculating the isotropic strain hardening is not correct and appears that it should be modified to the below formula which I found in literature:
SIGMAst= SIGMAy*a2*(EPSILONmax/EPSILONy-a3)

Regards
Alireza Jalali

Hi I am trying to use steel02 material as an element force-deformation response. the element's yield strength starts to deteriorate after a deformation of .04 . I want to use steel02 material isotropic strain hardening parameters a1, a2, a3, and a4 but the mentioned decrease starts at earlier points...

thank you very much indeed.
You are very kind to me

ok, I looked up the web for the dissertation but I couldn't find it. Just a 1 page summary report of it could be find on Blume center web site. Can you help me where i can find it?
thank you.