Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Equation Based Modeling in structure mechanics
Posted 12 mars 2013, 06:17 UTC−4 Studies & Solvers, Structural Mechanics Version 4.3 0 Replies
Please login with a confirmed email address before reporting spam
While solving equation based structure mechanics problem i encountered the following error message-
- Undefined value found.
- Detail: Undefined value found in the stiffness matrix.
-There are 2020 equations giving NaN/Inf in the matrix rows for the variable mod1.u at coordinates: (4.68675e-037,0.000125,-7.65404e-021), (7.65404e-021,0,-0.000125), (5.41223e-021,8.83883e-005,-8.83883e-005), (-1.40602e-036,-0.000125,2.29621e-020), (5.41223e-021,-8.83883e-005,-8.83883e-005), ...
-There are 1519 equations giving NaN/Inf in the matrix rows for the variable mod1.v at coordinates: (4.68675e-037,0.000125,-7.65404e-021), (7.65404e-021,0,-0.000125), (5.41223e-021,8.83883e-005,-8.83883e-005), (-1.40602e-036,-0.000125,2.29621e-020), (5.41223e-021,-8.83883e-005,-8.83883e-005), ...
-There are 2020 equations giving NaN/Inf in the matrix rows for the variable mod1.w at coordinates: (4.68675e-037,0.000125,-7.65404e-021), (7.65404e-021,0,-0.000125), (5.41223e-021,8.83883e-005,-8.83883e-005), (-1.40602e-036,-0.000125,2.29621e-020), (5.41223e-021,-8.83883e-005,-8.83883e-005), ...
and similarly for the degrees of freedom, NaN/Inf in the matrix columns.
Can anyone please suggest why this type of error is coming and how to remove it?
Thank You
Hello Kanhaiya Singh
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.