A NON-LINEAR CREEP CONSTITUTIVE MODEL FOR SALT ROCK BASED ON FRACTIONAL DERIVATIVES

被引：10

作者：

Chen, Jie ^{[1
]}

Lu, Dan ^{[1
]}

Wu, Fei ^{[1
,2
]}

Fan, Jinyang ^{[1
]}

Liu, Wei ^{[1
]}

机构：

[1] Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing, Peoples R China

[2] State State Key Lab Water Resource Protect & Util, Beijing, Peoples R China

来源：

THERMAL SCIENCE | 2019年 / 23卷

基金：

中国国家自然科学基金;

关键词：

creep; salt rock; fractional derivatives;

D O I：

10.2298/TSCI180510092C

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The creep property of the salt rock is an important determinant of deep underground repository of energy storage for long-term operatio. Starting from fractional derivative, this paper proposes a new concept of super Abel dashpot based on Abel dashpot. According to the Nishihara model, the non-linear element of super Abel dashpot is introduced, and a new salt rock creep constitutive model is established. The theoretical analytic solution of this model is then deduced. Fitting analysis of the experimental data indicates that the model can well reflect the whole-process creep curve, especially the non-linear accelerated creep stage.

引用

页码：S773 / S779

页数：7

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