Verification of the hypothesis of the existence of a potential with reference to teflon

In establishing the rheological relations describing the behavior of materials during deformation it is often very useful to employ a potential function. The hypothesis of the existence of a potential is verified in relation to the deformation of teflon in a complex state of stress.Scientific-Research Institute of Mathematics and Mechanics, Leningrad Zhdanov State University. Translated from Mekhanika Polimerov, No. 3, pp. 565–567, May–June, 1969.