| Abstract: | The equilibrium small finite deformations of a regular polymer network are considered. The free energy of the network is described in the form of a series expansion in small displacements of the network points from the equilibrium position. The general dependence of the free energy on the strain invariants thus obtained coincides with the Mooney expression for the free energy only in the first approximation. Aspects of the mechanical behavior of the material associated with this difference are discussed.Branch of the Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow Oblast. Translated from Mekhanika Polimerov, No. 4, pp. 615–618, July–August, 1971. |
