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Subject: Re: Units and Material Lib.
Author: Alex Ng Siu Wai
Date: 1999-01-05 22:04:00

Dear Brent,

In our practice, we use SI units for all the physical quantities except
length. The unit for length is in mm. After forming the model, we use the
scaling commands to scale down the whole model with the factor of 1E-3. It
will then express the length in meter. I hope that it can help you.

Good luck!

Alex Ng
ASM Assembly Automation Ltd

Hello,

I am working on putting together a material library. Millimeters are our
standard units, therefore, all imported models are in mm. For most cases I
can use units for pressure as N/mm^2 (structural analysis only). This is
fine as long as the model doesn't include gravity effects. If gravity is
involved I have to convert everything to base units I.E.: pressure as
[(Kg-mm/s^2) * (1/mm^2)]. This isn't that difficult, however, I would
eventually like to have everyone who uses Ansys at our facility to use one
material database, and it would be nice if the units in the database could
be "pretty". I would like to have pressures entered as MPa, forces as N,
and still have the model geometry be in mm. Has anyone dealt with this
problem before? Any suggestions would be helpful.

Brent Brower
Diesel Technology Co.
phone: 616.554.6997
Fax: 616.554.5100
Email: brent.brower@p...

Posts possibly associated with message #127AuthorDateScore
119Re: Units and Material Lib.Brent Brower1999/01/055
120Re: Units and Material Lib.Markus Lengauer1999/01/05 
123Re: Units and Material Lib.Scott Reiss1970/01/01 
124Re: Units and Material Lib.Philippe Vidori1999/01/05 
125Re: Units and Material Lib.Christopher Wright1970/01/01 
127Re: Units and Material Lib.Alex Ng Siu Wai1999/01/05 
129Re: Units and Material Lib.Chris Rogers1999/01/06