Hi. Thanks for this tutorial. May I ask you , in minute 36 , you said that force increas gradually. In this situation, global stiffness matrix is constant in all increments ??
Hi. You are welcome. As the NLGEOM has been set to off, the stiffness matrix will not change through out the simulation. But if the NLGEOM was activated, the stiffness was changing in each increment. I set it to off to do a linear analysis to compare my results with analytical result as it is based on linear assumption.
Hi. Thanks for this tutorial. May I ask you , in minute 36 , you said that force increas gradually. In this situation, global stiffness matrix is constant in all increments ??
Hi.
You are welcome.
As the NLGEOM has been set to off, the stiffness matrix will not change through out the simulation.
But if the NLGEOM was activated, the stiffness was changing in each increment.
I set it to off to do a linear analysis to compare my results with analytical result as it is based on linear assumption.