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Error in Ansys

Submitted by Mohammad Hajsadeghi on

hello everyone,

I model a reinforced concrete column in ansys . ( with william-warkne criteria )

During Bending Loading the below error was appear .

Please guide me That Error What's meaning ?

*** FATAL ***                           CP =      93.507   TIME= 12:07:01

 The supplied nonlinear material properties produced an incorrect       

 material tangent matrix.  Please check your TB input carefully.  A     

 very small yield stress may cause this failure.

Regard .

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thtesori

I believe that the problem you are experiencing is that the first point in your MISO curve does not match exactly with the data point you entered for EX for the linear isometric material property. You may find that the solution to your problem to match exactly the first point of the MISO curve to coincide with modeled Young's modulus. Try this and post whether it works or not.

Tue, 11/01/2011 - 00:01 Permalink
duzibocumt

I am currently trying to find a solution to the same problem. If you find anything, please post. I will do the same.Thank you！
My email address is duzibocumt [at] 163.com (duzibocumt[at]163[dot]com)。

Fri, 09/14/2012 - 13:01 Permalink
skykonor

Hi all! Have you solved this "fatal error" problem? I have the same difficulties with my modell (reinforced semi preacast slab in case of erection).

--> nonlinear concrete (Miso)  Ex=30000N/mm2,  first point= 9/Ex, 9   [N/mm2].   So this doesnt cause this exit fatal error.

Any suggestions? (its my master thesis)

Sun, 09/21/2014 - 15:46 Permalink
skykonor

Hi! Have you solved this "fatal error" problem? I have the same difficulties with my modell (reinforced semi preacast slab in case of erection).

--> nonlinear concrete (Miso)  Ex=30000N/mm2,  first point= 9/Ex, 9   [N/mm2].   So this doesnt cause this exit fatal error.

Any suggestions? (its my master thesis)

Sun, 09/21/2014 - 15:46 Permalink