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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › How to Create a Stiffness Matrix in APDL › Reply To: How to Create a Stiffness Matrix in APDL

July 28, 2021 at 8:18 am
Erik Kostson
Ansys Employee


Good to see that you made some progress - I have not used these commands much, so I do not know exactly how it is printed out. Perhaps someone else can help.

Finally that you get a 1x1 matrix I do not know. Obviously what you do in matlab (2D truss) and what ANsys does internally (3D spar truss) is going to be very different.

The stiffness of 1E6 is correct though (EA/L), so that is OK.

I am afraid that is all I have - good luck.

Erik