Circular Fiber Usage

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MusZip
Posts: 41
Joined: Tue Aug 06, 2024 5:36 am

Circular Fiber Usage

Post by MusZip » Tue Oct 08, 2024 9:56 am

Hello,

I try to model a simple beam using "Fiber section" with circular shape. There is a posiblity of defining a material as either "nd" or "uniaxal". If I define the fiber section using "uniaxial material", the material command under the command "Fiber section" is "activated", otherwise "inactive". At this time, I get a warning error as "physical property must be: 'materials.nd' and not: 'materials.uniaxial'.

What must I do in order to activate the material button under the command "Fiber section" for nD material?
Attachments
Lesson5_4_ASDEAEmbedeNodeElement_deneme1_error_FiberUsing.JPG
Lesson5_4_ASDEAEmbedeNodeElement_deneme1_error_FiberUsing.JPG (204.42 KiB) Viewed 570 times
Best wishings,

kesavapraba
Posts: 468
Joined: Sat Mar 28, 2020 2:25 pm

Re: Circular Fiber Usage

Post by kesavapraba » Tue Oct 08, 2024 11:05 am

Hi, you can only assign uniaxial material to fiber sections, so define a uniaxial material before defining the fiber section, the uniaxial material can be populated in the fiber section window. Please read the OpenSees documentation, as seen in the attached figure.
Attachments
fiber.png
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:: With best wishes ::
Prabakaran Kesavan

MusZip
Posts: 41
Joined: Tue Aug 06, 2024 5:36 am

Re: Circular Fiber Usage

Post by MusZip » Tue Oct 08, 2024 12:09 pm

Dear Kesavapraba,

Yes you are certainly right. In fact, I am agree with you. But, as I see it you in the perevios message, I get an warning error when I define the fiber section using the property of "uniaxial material" (see Lesson5_4_ASDEAEmbedeNodeElement_deneme1_error_FiberUsing2.jpg).

I hope to convey it you.
Attachments
Lesson5_4_ASDEAEmbedeNodeElement_deneme1_error_FiberUsing2.JPG
Lesson5_4_ASDEAEmbedeNodeElement_deneme1_error_FiberUsing2.JPG (110.35 KiB) Viewed 561 times
Best wishings,

kesavapraba
Posts: 468
Joined: Sat Mar 28, 2020 2:25 pm

Re: Circular Fiber Usage

Post by kesavapraba » Thu Oct 10, 2024 3:22 am

Hi, This error should be for solid but not from fiber. because I don't see any nD material created in physical properties for solid element.
:: With best wishes ::
Prabakaran Kesavan

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