HI chaitanya As far as i know, the relations for most of the polymers are provided in INtellisuite MEMS simulation software. U can refer in that if u have access for that. Ravi > Hi, > Where can I find out the stress-strain graph (or relations) for > following polymers- > 1) Polyimide > 2) Silicon Rubber > 3) PMMA > 4)Polycarbonate > 5) PDMS > 6) Polyester > 7) Polysulfone > 8)Acrylate > 9) Urethane, polyurethane, epoxy etc. > 10) Polypyrrole > 11) PVDF > 12) Polyaniline > 13)Silicone