A triaxial creep model for salt rocks based on variable-order fractional derivative

• Published in: Mechanics of time-dependent materials Vol. 25; no. 1; pp. 101 - 118
• Main Authors: Fei, Wu, Jie, Liu, Quanle, Zou, Cunbao, Li, Jie, Chen, Renbo, Gao
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.03.2021; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Classical Mechanics; Creep (materials); Engineering; Model accuracy; Polymer Sciences; Rheological properties; Rheology; Solid Mechanics; Triaxial loads; Triaxial creep model; Salt rock; Variable-order fractional derivative; Multistage loading

This paper intend to describe the entire creep process of a salt rock under triaxial loading, especially the creep characteristics in the accelerated creep stage, by replacing the Newtonian dashpot in the Maxwell model with the variable-order fractional derivative component and extending it from one...