Hello

Does anyone know the meaning of 'NaN' in the fatigue result pasted below?

Thanks

M Aminu

CASE 39 (FAT) L39=L9-L10 5 8000 53.48 6311643 0.00 8060 NaN 100 0.05
CASE 40 (FAT) L40=L11-L12 1000 8000 17.96 1067580736 0.00 8060 NaN 100 10.00*
CASE 41 (FAT) L41=L13-L14 1000 8000 15.14 INFINITY 0.00 8060 NaN 100 10.00*
CASE 42 (FAT) L42=L15-L16 15000 8000 10.87 INFINITY 0.00 8060 NaN 100 150.00*
TOTAL: 8000 0.00 8060 170.05*

That is bad. "NaN" means "not a number".

Send the job in to techsupport@coade.com and we'll take a look at it.

Richard,
I have sent the file.

Regards
M Aminu

Anybody know where can I get a paper written by Tom on implementing CAESAR-II Fatigue Analysis?

The article is in the Technical Reference Manual, starting on page 6-44.

Hello Richard,
I have sorted out this problem. I failed to input the Do value in SIF table.

Thanks for the time.
M Aminu

Can you be more specific, what Do value and what SIF table? If required input is omitted, CAESAR II should throw an error, not happily run along and produce "NaN" values.

Richard,
I have shown the field I omitted in the attached picture. As you have said CAESAR should have thrown up a warning at least.

M Aminu