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4.5.1.7 Malkin
This relaxation function is derived from the continuous relaxation spectrum given in [54]. The material type for this relaxation function is “relaxation-Malkin”. The following material parameters need to be defined:
<tau1> | Characteristic relaxation time | [t] |
<tau2> | Characteristic relaxation time | [t] |
<beta> | Power exponent | [ ] |
These parameters must satisfy . When , the reduced relaxation function for this material type is given by where is the incomplete gamma function. In the limit as this function reduces to the form given by [30], where is the exponential integral function.