Next Article in Journal
Investigation of Load-Bearing Capacity for Reinforced Concrete Foundation Retrofitted Using Steel Strut–Tie Retrofit System
Previous Article in Journal
In Search of Sustainable Economy Definition: A Qatari Perspective
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Sustainability
Volume 15
Issue 13
10.3390/su151310369
sustainability-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Triaxial Creep Damage Model for Salt Rock Based on Fractional Derivative

by
Xinbo Zhao
1,
Heng Chen
1,2,
Jian Lv
1,
Xiaohong He
1,
Yiwei Qin
1 and
Keming Sun
1,2,*
1
School of Science, Qingdao University of Technology, Qingdao 266525, China
2
Underground Unconventional Energy Development Laboratory, Qingdao University of Technology, Qingdao 266525, China
*
Author to whom correspondence should be addressed.
Sustainability 2023, 15(13), 10369; https://doi.org/10.3390/su151310369
Submission received: 6 May 2023 / Revised: 22 June 2023 / Accepted: 25 June 2023 / Published: 30 June 2023
Browse Figures
Versions Notes

Abstract

The long-term stability of underground energy reserves is closely linked to salt rock creep. To study the creep behavior of salt rock, creep tests were conducted on salt rock specimens under various confining pressures and axial stresses. The test results reveal that the creep of salt rock is influenced by the combined effect of confining pressure and deviatoric stress, which represents the difference between axial and confining pressure. Subsequently, a long-term strength and time-controlled viscoplastic damage body is proposed by considering the plastic deformation in the steady-state creep stage. The viscoplastic damage body is connected in series with the fractional-order Maxwell model to form a new six-element nonlinear creep model generalized to three-dimensional form. The applicability of the new model was verified using triaxial creep test data of salt rock, and it was found to describe the creep curve more accurately compared to the Nishihara model. A sensitivity analysis of the model parameters indicates that different parameters affect various creep stages, and creep curves under different loads can be adjusted by changing these parameters.
Keywords: energy reserve; salt rock creep; fractional order; constitutive model energy reserve; salt rock creep; fractional order; constitutive model

Share and Cite

MDPI and ACS Style

Zhao, X.; Chen, H.; Lv, J.; He, X.; Qin, Y.; Sun, K. Triaxial Creep Damage Model for Salt Rock Based on Fractional Derivative. Sustainability 2023, 15, 10369. https://doi.org/10.3390/su151310369

AMA Style

Zhao X, Chen H, Lv J, He X, Qin Y, Sun K. Triaxial Creep Damage Model for Salt Rock Based on Fractional Derivative. Sustainability. 2023; 15(13):10369. https://doi.org/10.3390/su151310369

Chicago/Turabian Style

Zhao, Xinbo, Heng Chen, Jian Lv, Xiaohong He, Yiwei Qin, and Keming Sun. 2023. "Triaxial Creep Damage Model for Salt Rock Based on Fractional Derivative" Sustainability 15, no. 13: 10369. https://doi.org/10.3390/su151310369

APA Style

Zhao, X., Chen, H., Lv, J., He, X., Qin, Y., & Sun, K. (2023). Triaxial Creep Damage Model for Salt Rock Based on Fractional Derivative. Sustainability, 15(13), 10369. https://doi.org/10.3390/su151310369

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop