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DOI	10.1016/j.ijmecsci.2019.06.002
	A meso-macroscopic constitutive model of frozen saline sandy soil based on homogenization theory
	Chang, Dan; Lai, Yuanming; Zhang, Mingyi
发表日期	2019
ISSN	0020-7403
EISSN	1879-2162
起始页码	246
结束页码	259
卷号	159
英文摘要	As an effective multiscale method, homogenization theory is widely applied to the composite material research field. The saturated frozen saline sandy soil can be regarded as a typical kind of composite material composed of sandy soil matrix, ice, salt crystals and unfrozen water inclusions. A meso-macroscopic constitutive model of saturated frozen saline sandy soil is developed based on the homogenization theory. In the proposed model, the constitutive response of equivalent inclusion phase is presented by an elastic-brittle model while that of sandy soil matrix phase is described by a critical state elastoplastic model. Based on the three-phase sphere model and Mori-Tanaka method, the expressions of elastic parameters of equivalent inclusion phase are given. The influences of inclusion volume contents on elastic parameters of equivalent inclusion phase are analyzed. On the other hand, the plastic parameters of sandy soil matrix phase can have considerable effects on the macroscopic deformation features. Compared with the experimental results, the proposed model can predict the deformation of frozen saline sandy soil with different salt contents at various confining pressures. The strain hardening/softening, high dilation and pressure melting features can be well reproduced.
英文关键词	Frozen saline sandy soil; Meso-macroscopic constitutive model; Homogenization theory; Three-phase sphere model; Mori-Tanaka method
语种	英语
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
WOS关键词	COMPUTATIONAL HOMOGENIZATION ; MECHANICAL-BEHAVIOR ; COMPRESSIVE STRENGTH ; ELASTIC PROPERTIES ; MACRO TRANSITIONS ; CRITERION ; POLYCRYSTALS ; DEFORMATION ; STRAIN ; COMPOSITES
WOS记录号	WOS:000478709600019
来源期刊	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239451
作者单位	[Chang, Dan; Lai, Yuanming; Zhang, Mingyi] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Chang, Dan] Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China; [Lai, Yuanming; Zhang, Mingyi] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chang, Dan,Lai, Yuanming,Zhang, Mingyi. A meso-macroscopic constitutive model of frozen saline sandy soil based on homogenization theory[J],2019,159.
APA	Chang, Dan,Lai, Yuanming,&Zhang, Mingyi.(2019).A meso-macroscopic constitutive model of frozen saline sandy soil based on homogenization theory.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,159.
MLA	Chang, Dan,et al."A meso-macroscopic constitutive model of frozen saline sandy soil based on homogenization theory".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 159(2019).