In 2013, glass density is 2.18 g/cm^3. But in older versions, we had that as 2.56 g/cm^3 for many years. Google results range between 2.5 to 2.6 g/cm^3. Anyone can explain why 2013 has much lower value? Thanks.
The glass density available in the physical properties of the material in 2013 and 2014 seems to be effectively underestimated.
A change request is already opened and ongoing to verify and update the density with a more appropriate value.
For your information I have observed that the "Glass" densities available in the:
1) "Autodesk Material Library" of Inventor 2013 is 2.42 g/cm^3
2) "Inventor Material Library"" of Inventor 2013 is 2.18 g/cm^3.
3) In Inventor 2011, 2012 and 2014 the densities values are all 2.18 g/cm^3
You could duplicate or update the “glass” material present in the libraries and save it in a personal library (or in the Inventor Material Library if you have the access).
I hope that will help
Thanks for your reply.
Our Inventor was upgraded to 2013 from 2010 about a year. Library was migrated at that point. Didn't notice this issue until yesterday. I will update our customised library.