Column with 2 different materials

If you have a script you think might be useful to others post it
here. Hopefully we will be able to get the most useful of these incorporated in the manuals.

Moderators: silvia, selimgunay, Moderators

Post Reply
imadelkhouri
Posts: 5
Joined: Fri Dec 18, 2015 9:49 am
Location: The University of Sheffield

Column with 2 different materials

Post by imadelkhouri »

Hello,

I am trying to model a Frame with its columns made up of 2 different materials.
I am using a FiberSection to define the cross-section of the column; the column material and steel detailing changes at the top.

So my question is: how do I split the column into 2 elements but keep the behavior as if it is one element. (how should i model the connection).
_________BEAM___________
[**]~~~~~~~~~~~~~~~~~~~~~[**]
[**]~~~~~~~~~~~~~~~~~~~~~[**] <-----
[]~~~~~~~~~~~~~~~~~~~~~~[] <----- How to connect these 2 elements into ONE column behavior
[]~~~~~~~~~~~~~~~~~~~~~~[]
[]~~~~~~~~~~~~~~~~~~~~~~[]
[]~~~~~~~~~~~~~~~~~~~~~~[]
[]~~~~~~~~~~~~~~~~~~~~~~[]
_[]__~~~~~~~~~~~~~~~~~~~_[]__
////~~~~~~~~~~~~~~~~~~~////

Thank you!
imadelkhouri
Posts: 5
Joined: Fri Dec 18, 2015 9:49 am
Location: The University of Sheffield

Re: Column with 2 different materials

Post by imadelkhouri »

Apologies for posting in the wrong Forum, I was not aware of that.
(but still if you have an answer for my question, it would be much appreciated).
bahramabdollahi
Posts: 7
Joined: Sat Mar 12, 2016 6:32 am
Location: Iran

Re: Column with 2 different materials

Post by bahramabdollahi »

hello
i hope you be fine
i think it's better to define two members with different materials and connect both of them with rigid link command.
imadelkhouri
Posts: 5
Joined: Fri Dec 18, 2015 9:49 am
Location: The University of Sheffield

Re: Column with 2 different materials

Post by imadelkhouri »

Hello and thank you for your reply,

I will try your method soon, but theoretically will that cause a stress concentration at that rigid link point ?
Comparing this to ABAQUS, one full element/column is modeled, then it is partitioned into 2 parts and each assigned a material without having any stress concentrations.

Thank for the support!
Post Reply