Problems with units in Abaqus

[optimus2007]

As far as I am informed Abaqus does not care about units.
After setting the "approximate size" I have noticed that the measurement of the model has the factor 1:100.
For example line A to B has the value 1 (distance "H1"). But I want it to be 100. And not only for this line but for the whole model, which has a complex geometry.

 

[corus]

Not sure why you have a scale to the model unless it's to do with importing geometry, but you can copy the part and scale it back up by some factor, When you assemble the parts make sure you have the right parts.

Tata

 

[rstupplebeen]

On complex freeform parts I find that the scale introduces slivers and other geometrical issues. I usually go to the CAD and scale there. I hope this helps.

Rob Stupplebeen

 

[optimus2007]

Thanx for the comments.
Where can I modify it in CAE Abaqus?

There is a "Shetch option" , but I am still confused,
because the measurements of the model remain.

 

[corus]

The part manager allows you to copy parts.

Tata

 

[aeroafrix2]

What scale option did you use when you were importing the geometry?

And as already pointed out, this would result in silver linings in your final model and this may cause problems during the time of meshing.

What not scale it up in your CAD environment and then import the geometry as *stp file options in Abaqus CAE?

 

[eduardocamargo]

Dude,

The scale factor cames with the model (geometry) input you've done!

About the units, ABAQUS "doesn't" consider wheter units you're using, so the results are in the units you've input.

As an example, I usually want the STRESS results in MPa [N/mm^2] so my units input should be:
PRESSURE, STRESS: N/mm^2
LENGHT: mm
FORCE: N
POISSON: NON DIMENSIONAL
DENSITY: ton/mm^3 (same as density in g/cc * E-09)

This is just an example, so if you wanna your results in a unit, you should work with de inputs dimensionallity to get it as a result!

Hope this can help you!

Best regrads,
Eduardo

 

[optimus2007]

Thanx to all comments. I have already fixed the problem by creating a new one with the correct size.