Hello,
I'm making a model of a cell in a periodic 3D solid made of high stress (Stoichiometric) Si3N4. The model has a linear material -> initial stress and strain node with the initial components of the stress and periodic conditions nodes for the boundaries perpendicular to the x and y axes. My goal is to first complete a stationary study to see how the initial stress redistributes in the cell, and then use the results in an eigenfrequency study.
The problem is that the stationary study with periodic boundaries and an initial stress will not converge to a solution, and the error is much, much larger than the tolerance (~1e3 order errors).
Does anyone know how to handle a stationary study in this situation, i.e., how to have initial stress and periodic boundaries in a model?
Sincerely,
Gabriel
I'm making a model of a cell in a periodic 3D solid made of high stress (Stoichiometric) Si3N4. The model has a linear material -> initial stress and strain node with the initial components of the stress and periodic conditions nodes for the boundaries perpendicular to the x and y axes. My goal is to first complete a stationary study to see how the initial stress redistributes in the cell, and then use the results in an eigenfrequency study.
The problem is that the stationary study with periodic boundaries and an initial stress will not converge to a solution, and the error is much, much larger than the tolerance (~1e3 order errors).
Does anyone know how to handle a stationary study in this situation, i.e., how to have initial stress and periodic boundaries in a model?
Sincerely,
Gabriel