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Table 4 Some creep laws encountered in the literature (see, e.g., Ref. [61])

From: Symmetry analysis and equivalence transformations for the construction and reduction of constitutive models

References Relationship
[71, 72] \(\varepsilon =f_1(\sigma ) f_2(t) f_3(T)\)
[73,74,75,76] \({\dot{\varepsilon }}=f_1(\sigma ) f_2(t) f_3(T)\)
[73, 74, 77, 78] \({\dot{\varepsilon }}=g_1(\sigma ) g_2(\varepsilon _c) g_3(T)\)
[74] \(E(t) \Phi [\varepsilon (t)]=\sigma (t)+\int _0^t K(t,\tau ) \sigma (\tau ) d\tau \)