1. The problem statement, all variables and given/known data I'm doing some preliminary research for a potential IB extended essay topic. It involves thermal stresses in fused glass; details aren't that important right now. But I need to find a table, equation, or SOME sort of reference that gives me the relationship between the temperature of glass and its shear modulus. Does anyone have a clue where I could find such a thing? Even approximate values, a simplified equation, or a possible source would be appreciated. 2. Relevant equations Shear modulus = (shear stress) / (shear strain) 3. The attempt at a solution Google has failed me after an extensive search, sadly. I've tried looked through the library as well, but met with no success (probably because I don't know where to start). PS. First post; apologies if this is not the right forum.