Nagativ eigenvalues in matrix
Nagativ eigenvalues in matrix
(OP)
I get two warning massages:
1. Strain output request le is not valid for some elements in this analysis. The request is switched to the strain measure, e. and
2. The system matrix has ... negativ eingenvalues.
and the job stops with the Error "too many attempts for an increment".
What is the reason of the strain putput request?
Thanks
1. Strain output request le is not valid for some elements in this analysis. The request is switched to the strain measure, e. and
2. The system matrix has ... negativ eingenvalues.
and the job stops with the Error "too many attempts for an increment".
What is the reason of the strain putput request?
Thanks





RE: Nagativ eigenvalues in matrix
RE: Nagativ eigenvalues in matrix
Negative eigenvalues usually mean not enough constraints leading to rigid body motion.
Gurmeet
RE: Nagativ eigenvalues in matrix
RE: Nagativ eigenvalues in matrix
But Error "too many attemps for an increment" *grr*
RE: Nagativ eigenvalues in matrix