Which unit of measure have I used in the SI.
N, m, s, end for mass kg.
Thanks.
Which unit of measure have I used in the SI.
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Curiosity on the analysis
The analysis of the examples on the site OpenSees, they are sufficient for a simple building concrete.
If you want, you can respond in Italian.
Thanks.
If you want, you can respond in Italian.
Thanks.
Re: Which unit of measure have I used in the SI.
OpenSees is unitless. You as a user can choose any set of units for your model, but make sure to be consistent.
Re: Which unit of measure have I used in the SI.
vesna wrote:
> OpenSees is unitless. You as a user can choose any set of units for your
> model, but make sure to be consistent.
Hi, Vesna.
I know OpenSees is unitless. But I have a question. I model a zerolength element using saws material, one version is using kN, mm, sec, another is using kips, in, sec. after running the same ground motion with different g (9800 mm/sec^2 and 386.4 in/sec^2), they got different displacements from the same node. I have compared the displacements with the same unit (mm), however, only the first 300 numbers are close, the rest of the results are totally different. I wonder is it because of the nonlinear behavior of saws material? It seems does not make any sense. Can you try to help me think about it?
Thank you so much. I really appreciate your help.
> OpenSees is unitless. You as a user can choose any set of units for your
> model, but make sure to be consistent.
Hi, Vesna.
I know OpenSees is unitless. But I have a question. I model a zerolength element using saws material, one version is using kN, mm, sec, another is using kips, in, sec. after running the same ground motion with different g (9800 mm/sec^2 and 386.4 in/sec^2), they got different displacements from the same node. I have compared the displacements with the same unit (mm), however, only the first 300 numbers are close, the rest of the results are totally different. I wonder is it because of the nonlinear behavior of saws material? It seems does not make any sense. Can you try to help me think about it?
Thank you so much. I really appreciate your help.
Re: Which unit of measure have I used in the SI.
For model defined in kN, mm, sec, the displacement will be in mm. For model defined in kips, in, sec, the displacement will be in inches. To compare the numbers you will have to convert inches to mm.
I would not think that the SAWS material is unit sensitive. However, read the referenced material to confirm this.
I would not think that the SAWS material is unit sensitive. However, read the referenced material to confirm this.