Warning with Matrix27
Warning with Matrix27
(OP)
Hello!
I have a fe-model that uses matrix27 elements with keyopt(3)=4 (defines stiffness matrix). It works just fine. But:
I get the following warnig if I save model as CDB-File and then read it back in:
For element type= 5 (MATRIX27),KEYOPT(3) = 0 is invalid and will
generate no matrix unless a KEYO or another ET command is issued
making KEYOPT(3) = 2,4,or 5.
When listing the element types, the keyopt(3) is set to 4, as it should be!
So why this warning??
Thanks!
I have a fe-model that uses matrix27 elements with keyopt(3)=4 (defines stiffness matrix). It works just fine. But:
I get the following warnig if I save model as CDB-File and then read it back in:
For element type= 5 (MATRIX27),KEYOPT(3) = 0 is invalid and will
generate no matrix unless a KEYO or another ET command is issued
making KEYOPT(3) = 2,4,or 5.
When listing the element types, the keyopt(3) is set to 4, as it should be!
So why this warning??
Thanks!





RE: Warning with Matrix27
------------
See FAQ569-1083 for details on how to make best use of Eng-Tips.com
RE: Warning with Matrix27
I must say, it's very curious.
Although after reading the cdb-File and after I get this stupid warning, I list the element types and I see, that the Matrix27 element has the right key option.
And the solution seems to be okay...
Regards,
Alex
RE: Warning with Matrix27
Ansys sets the key option for Matrix27 AFTER it defines the Element Type:
ET,6,27
KEYOP,6,3,4
If I change the two line above with this one:
ET,6,27,,,4
I get no warning anymore!