New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements
Joint Authors
Tang, Hao
Wang, Dongpo
Duan, Zhao
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-02-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Creep models are mainly used to describe the rheological behaviour of geotechnical materials.
An important research focus for studying creep in geotechnical materials is the development of a model with few parameters and good simulation performance.
Hence, in this study, by replacing the Newtonian dashpot and spring in the classical Maxwell model with fractional and elastic-plastic elements, a new Maxwell creep model based on fractional derivatives and continuum damage mechanics was developed.
One- and three-dimensional (1D/3D) creep equations of the new Maxwell creep model were derived.
The 1D creep equation of the new model was used to fit existing creep data of rock salt, and the 3D creep equation was used to fit the creep data of remolded loess.
The model curves matched the creep data very well, showing considerably higher accuracy than other models.
Furthermore, a sensitivity study was carried out, showing the effects of the fractional derivative order β and exponent α on the creep strain of rock salt.
This new model is simple with few parameters and can effectively simulate the complete creep behaviour of geotechnical materials.
American Psychological Association (APA)
Tang, Hao& Wang, Dongpo& Duan, Zhao. 2020. New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1125762
Modern Language Association (MLA)
Tang, Hao…[et al.]. New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements. Advances in Civil Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1125762
American Medical Association (AMA)
Tang, Hao& Wang, Dongpo& Duan, Zhao. New Maxwell Creep Model Based on Fractional and Elastic-Plastic Elements. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1125762
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125762