On the Dissipative Viscoelastic Constants of Higher Order

The limitations imposed upon the usual elastic and viscoelastic constants are reinvestigated. Defining viscoelastic properties of a higher order, it is found that methods which have been used for the first‐order quantities are insufficient to determine relationships between the higher‐order constants. Necessary but non‐sufficient criteria are arrived at by means of arguments involving energies in dissipative processes.