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DOI	10.1016/j.ijplas.2018.04.007
	An elastoplastic model for saturated freezing soils based on thermo-poromechanics
	Liu, Enlong; Lai, Yuanming; Wong, Henry; Feng, Jili
发表日期	2018
ISSN	0749-6419
EISSN	1879-2154
起始页码	246
结束页码	285
卷号	107
英文摘要	An elastoplastic theory for saturated freezing soils is presented on the basis of thermo-poromechanics. A saturated freezing soil considered as an open system and both Eulerian and Lagrangian formulations considering the phase transition between ice crystals and unfrozen water are given for mass conservation, momentum balance, kinetic energy theorem, first and second thermodynamics, the Clausius-Duhem inequality and conduction laws for fluid mass and heat. Using the Lagrangian saturation and considering solid-fluid interface interactions, a constitutive model for poro-elastoplastic saturated freezing soils is formulated based on the irreversible process. For isotropic linear thermo-poro-elasticity and ideal plasticity, the stress strain relationship for saturated freezing soils considering the influence of temperature and interface energy is proposed. In addition, for hardening plasticity, the general stress strain relationship is formulated under the conditions that the associated or non-associated flow rule is assumed, and a corresponding constitutive model is presented to model the cryogenic triaxal compression of saturated frozen soils. The constitutive theory proposed here provides a potential basis for modelling thermo-hydro-mechanical coupling interactions of saturated soils during the freezing process.
英文关键词	Thermoporomechanics; Saturated freezing soils; Constitutive model; Elastoplastic theory; Thermodynamics
语种	英语
WOS研究方向	Engineering ; Materials Science ; Mechanics
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
WOS关键词	CONSTITUTIVE MODEL ; GENERAL-THEORY ; COUPLED WATER ; FROST HEAVE ; DEFORMATION ; TEMPERATURE ; SIMULATION ; CRITERION ; FRAMEWORK ; BEHAVIOR
WOS记录号	WOS:000437999800012
来源期刊	INTERNATIONAL JOURNAL OF PLASTICITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239467
作者单位	[Liu, Enlong; Lai, Yuanming] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; [Liu, Enlong] Sichuan Univ, Coll Water Resource & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China; [Wong, Henry] ENTPE, CNRS, UMR 5513, LTDS, F-69120 Vaulix En Velin, France; [Feng, Jili] China Univ Min & Technol Beijing, Sch Mech & Civil Engn, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Liu, Enlong,Lai, Yuanming,Wong, Henry,et al. An elastoplastic model for saturated freezing soils based on thermo-poromechanics[J],2018,107.
APA	Liu, Enlong,Lai, Yuanming,Wong, Henry,&Feng, Jili.(2018).An elastoplastic model for saturated freezing soils based on thermo-poromechanics.INTERNATIONAL JOURNAL OF PLASTICITY,107.
MLA	Liu, Enlong,et al."An elastoplastic model for saturated freezing soils based on thermo-poromechanics".INTERNATIONAL JOURNAL OF PLASTICITY 107(2018).