Warnings during Analysis

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mcrciith
Posts: 1
Joined: Sun Jun 19, 2016 5:57 am
Location: Indian Institute of Technology, Hyderabad

Warnings during Analysis

Post by mcrciith » Sat Mar 04, 2017 6:29 pm

Dear Sir,

I am running an analysis for a 3D RC frame with fiber column and elastic beam.
During Time History analysis, Gravity was successful but I was getting an error in "earthquake excitation case" saying
"WARNING - ForceBeamColumn3d:: update - failed to get compatible element forces & deformations for element: 4(dW: << 0.0188577, dW0: -5.4624)."
I searched the topics in forum and found that this may be due to "insufficient section"
Then I increased the diameter of bar from 25 mm to 32 mm.
The earthquake analysis is successful but the Gravity case is failing with an error message:
"WARNING: CTestNormDispIncr::test() - failed to converge after: 25 iterations current Norm: 0.0132834 (max: 1e-006, Norm deltaR: 58.7846)"
May I know why Gravity analysis is failing?

Thank you in advance.

fmk
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Location: UC Berkeley
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Re: Warnings during Analysis

Post by fmk » Mon Mar 06, 2017 9:14 pm

there is a problem with the models or the loads.

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