Zoi Stavrothanasi
Ansys Employee

Hello Jagog,

You are correct, since a metric unit system (m, kg, N, s, V, A) was used for the simulation the unit of stiffness is Newtons per meter (N/m). The units of the exported matrices will be the same as the units used in your project, as determined by the system of units set in your project settings.

Also note that, when exporting the stiffness and mass matrices using the SMAT and PRINT commands after the solution, the numerical values of the matrices will be exported without any information for the units.

Hope that helps!