FATAL ERROR 257 :Stiffness matrix

Posted by: lokeshkgf

FATAL ERROR 257 :Stiffness matrix - 12/14/10 05:08 AM

Hi,
Working in Design code -ISO 14692
Output represents FATAL ERROR 257 in batch run.
Stiffness matrix is been detected & numerically singular..
Kindly suggest to solve the above mentioned error.

Posted by: Richard Ay

Re: FATAL ERROR 257 :Stiffness matrix - 12/14/10 06:16 AM

That error means you have "rigid body motion". Something is not connected properly in your system. The first thing to check is your use of CNODES.

If you can't find the problem, send the job in to TechSupport.