Dear Jose,

I hope you aware that FEM analysis is going to be performed using basic fundamental equation i.e. equilibrium equation. If this conditional equation is satisfied then the solution may be converged with exact. This can be achieved in many ways i.e. increase the number of load step but another important one is number of iterations. Normally when the solution is not converged then the unbalanced forces is carried forwarded to next iteration and it continue upto the stage in which the solution is converging.. so in that case if you increase the number of iterations then you have a chance for satisfying the convergence criteria. Another option is defining the convergence criteria in your model i.e. for displacement based analysis, it is 0.005 mm or forced based analysis i.e. 0.1 kN. ok all the best in your research work..

Dear Karthigeyan,

Many thanks for the advice. In fact my problem was that the forces were not in equilibrium in y static model, which caused convergence problems. As a I only needed my geometry to move in the direction of my force, I was able to solve the problem by using linear elements C3D4 instead of Quadratic. Thus, rotation was not allowed by using these elements without compromising the result.

Best!