units of records?

[Eli]

Hi everybody
1- In time history analysis, when we use mass in unit of kg, E and Fy in unit of N/m2, and ground motion records in unit of g (GMfatt [expr 9.81]), what will be the unit of column force and deformation?
2- What about , when we use mass in unit of kips.s2/in, E and Fy in unit of kip/in2, and ground motion records in unit of in/s2 (GMfatt [expr 1])?

[fmk]

OpenSees is unitless .. the units output are whatever you use in the input .. make sure all your input units are consistant.

[Eli]

thanks
it means: in first case the columns forces will be in unit of N ?
and in the second case, it will be in unit of kips?

[fmk]

exactly .. providing of course all you units are the same in the file (or files if you source other files) .. if not the results are meaningless.

[jovillarroelb]

and what about the displacements, the x, y and z are in [mm] for ex. but what about the rx, ry and rz? curvature?

[fmk]

rz,ry, rz: radians