Hong, Yi and Wang, Xuetao and Wang, Lizhong and Kang, Guozheng and Gao, Zhiwei (2024) High-cycle shakedown, ratcheting and liquefaction behavior of anisotropic granular material with fabric evolution: experiments and constitutive modelling. Journal of the Mechanics and Physics of Solids, 187: 105638. ISSN 0022-5096

Abstract

Although the mechanical response of granular materials strongly depends on the interplay between their anisotropic internal structure (fabric) and loading direction, such coupling is not explicitly considered in existing high-cycle experimental datasets and models. High-cycle experiments on granular specimens specifically prepared with various fabric orientations are presented. It is found that the high-cycle strain accumulation behavior can change remarkably, from shakedown to ratcheting, when the fabric orientation deviates more from the loading direction. Inspired by the experimental observations, a fabric-dependent anisotropic high-cycle model is proposed, by proper recasting of an existing model formulated within Critical State Theory, into the framework of Anisotropic Critical State Theory. The model explicitly accounts for the fabric evolution, which is linked to plastic modulus, dilatancy and kinematic hardening rules. The model can quantitatively reproduce the high-cycle strain accumulation (i.e., shakedown and ratcheting) under drained conditions, as well as pre-liquefaction and post-liquefaction responses granular materials having widely ranged fabric anisotropy, densities and cyclic loading types using a unified set of constants. It exhibits a unique feature of simulating the distinct high-cycle strain accumulation and liquefaction of granular material with various fabric anisotropy, while the existing high-cycle models treat them equally. The successful reproduction of the anisotropic sand element response under high-cycle drained and undrained conditions makes it possible to perform whole life analysis of various foundations on granular soil subjected to high-cycle loading events.

People
Hong, Yi
Author

Hong, Yi and Wang, Xuetao and Wang, Lizhong and Kang, Guozheng and Gao, Zhiwei (2024) High-cycle shakedown, ratcheting and liquefaction behavior of anisotropic granular material with fabric evolution: experiments and constitutive modelling. Journal of the Mechanics and Physics of Solids, 187: 105638. ISSN 0022-5096

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Wang, Xuetao
Author

Hong, Yi and Wang, Xuetao and Wang, Lizhong and Kang, Guozheng and Gao, Zhiwei (2024) High-cycle shakedown, ratcheting and liquefaction behavior of anisotropic granular material with fabric evolution: experiments and constitutive modelling. Journal of the Mechanics and Physics of Solids, 187: 105638. ISSN 0022-5096

See full publications list
Wang, Lizhong
Author

Hong, Yi and Wang, Xuetao and Wang, Lizhong and Kang, Guozheng and Gao, Zhiwei (2024) High-cycle shakedown, ratcheting and liquefaction behavior of anisotropic granular material with fabric evolution: experiments and constitutive modelling. Journal of the Mechanics and Physics of Solids, 187: 105638. ISSN 0022-5096

See full publications list
Kang, Guozheng
Author

Hong, Yi and Wang, Xuetao and Wang, Lizhong and Kang, Guozheng and Gao, Zhiwei (2024) High-cycle shakedown, ratcheting and liquefaction behavior of anisotropic granular material with fabric evolution: experiments and constitutive modelling. Journal of the Mechanics and Physics of Solids, 187: 105638. ISSN 0022-5096

See full publications list
Gao, Zhiwei
Author

Li, Xin and Gao, Zhiwei and Lu, Liang (2025) Numerical investigation on the response of ground-reinforced embankments under repeated impact. Engineering Geology, 345: 107875. ISSN 0013-7952

Kootahi, Karim and Kwan Leung, Anthony and Jiang, Zhenliang and Liu, Jianbin and Qi, Rui and Lourenço, Sérgio D.N. and Lai, Zhengshou and Gao, Zhiwei (2024) Evaluation of the methods of particle morphology characterization: CT scanning, digital imaging and light microscopy. Computers and Geotechnics, 174: 106648. ISSN 0266-352X

Li, Xin and Gao, Zhiwei (2024) Evaluation of three weight functions for nonlocal regularisation of sand models. International Journal of Geomechanics, 24 (7): 04024125. ISSN 1532-3641

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