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Member
masamp
Posts: 5
Registered: ‎07-29-2012

Nonlinear concrete analisys

230 Views, 3 Replies
07-29-2012 09:10 PM

Hi all,

 

I'm trying to perform a simple analysis using concrete material type but it seams to be impossible. In the results table the maximum and minimum values are ever "Not Available". 

 

Can someone say me why?

 

Attached is my sample beam. 

 

Note that there are two scenarios because I was trying both. 

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Member
masamp
Posts: 5
Registered: ‎07-29-2012

Re: Nonlinear concrete analisys

07-30-2012 06:03 PM in reply to: masamp

no?

 

Please, help me!

 

thanks

 

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Employee
INACTIVE_AstroJohn
Posts: 492
Registered: ‎03-25-2010

Re: Nonlinear concrete analisys

07-31-2012 07:05 AM in reply to: masamp

Hi masamp,

 

Here's the error message that appears in your log file:

 

 ** STOP: Unable to determine concrete material constants (A4,K0)
          from specified concrete strengths
          Check input or specify material constants directly
          Element group number =     1
 ** Error (1)

 

(You can view the log file from the "Report" environment by selecting "Log" at the bottom of the tree.)

 

From looking at your material properties, I think the problem is that you do not have anything entered on the "Hardening" tab. Please enter the appropriate data.

Sincerely,
John Holtz, P.E.
Senior User Experience Designer, Simulation
Autodesk, Inc.

Current version of Mechanical & Multiphysics: 2013 SP1 (2013.01.00.0012 28-Jun-2012)
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Member
masamp
Posts: 5
Registered: ‎07-29-2012

Re: Nonlinear concrete analisys

08-10-2012 02:08 PM in reply to: INACTIVE_AstroJohn

Thanks John. 

I tryed input the correct hardening parametrs but the message in log report remains.

I dont know how to evaluate A4 and k0 parameters.

I am attaching my material library.

Do you have a material library that you can send it to me? I would like to do some tests and comparisions with my material parameters.

 

Thanks again!

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