Generalized Fractional Flow Rule and Its Modelling of the Monotonic and Cyclic Behavior of Granular Soils

被引：2
作者：
Sun, Yifei [1 ]
Chen, Cheng [2 ]
Song, Shunxiang [1 ]
机构：
[1] Hohai Univ, Minist Educ Geomech & Embankment Engn, Key Lab, Nanjing 210098, Jiangsu, Peoples R China
[2] Wuhan Univ Technol, Sch Civil Engn & Architecture, Wuhan 430070, Hubei, Peoples R China
来源：
PROCEEDINGS OF GEOSHANGHAI 2018 INTERNATIONAL CONFERENCE: FUNDAMENTALS OF SOIL BEHAVIOURS | 2018年
基金：
中国博士后科学基金;
关键词：
Elastoplastic; Fractional calculus; Flow rule; Granular soil; CONSTITUTIVE MODEL; SAND MODEL; STATE;
D O I：
10.1007/978-981-13-0125-4_33
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The fractional-order plastic flow rule for monotonic loading condition is generalized in this study by analytical derivation to consider the loading and unloading behavior of granular soil under triaxial compression and extension conditions. An improved fractional-order plasticity model is then proposed by using the generalized fractional-order plastic flow rule. The proposed model is validated by simulating a series of experimental results of different granular soils subjected to monotonic and cyclic loading conditions. It is found that unlike the previous model, the proposed model is capable of simulating different kinds of material deformation under monotonic and cyclic loads.
引用
收藏
页码：299 / 307
页数：9
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