I would like to know the effect of temperature on the elasticity of substances. I have searched on the internet and have not found anything. My current line of thinking goes thus: Modulus= Stress/strain Strain = increase in length / original length For higher temperature, increase in length would be more, hence strain would be more. Consequently, modulus of elasticity would decrease(Since stress is kept constant). Substances with higher modulus of elasticity are more elastic. Hence increase in temperature should decrease elasticity. Any help or links on the topic would be greatly appreciated.