Nonlinear Cross-Anisotropic Model for Soils at Various Strain Levels

doi:10.1061/(ASCE)GM.1943-5622.0000337

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Nonlinear Cross-Anisotropic Model for Soils at Various Strain Levels
	Chen, Cheng; Zhou, Zheng-ming
刊名	INTERNATIONAL JOURNAL OF GEOMECHANICS
	2014
卷号	14 期号:4 页码:-
关键词	Nonlinearity Small strain Cross-anisotropy Hypoelastic model
ISSN号	1532-3641
DOI	10.1061/(ASCE)GM.1943-5622.0000337
英文摘要	Nonlinearity and anisotropy of stress-strain responses are important factors influencing the behavior of soil. To describe this complex behavior of soils, a hypoelastic constitutive model is developed based on cross-anisotropic elasticity, which involves four parameters: the bulk modulus, tangent Young's modulus, coefficient of volume deformation, and Poisson's ratio. To satisfactorily predict the stiffness of soils at various strain levels, especially in small strain regions, a new stress-strain fitting relationship with four parameters is proposed. For normally consolidated or weakly overconsolidated clay, the dilatancy equation of the Cam-clay model is used to determine the coefficient of volume deformation. Overall, the model is convenient to use. Ten material parameters are involved, which can be obtained from an isotropic compression test, a set of drained triaxial compression tests, and a uniaxial compression test. The computed results of the model are in good agreement with the data from the tests, in which each specimen was reconsolidated under the k(0) condition. The results verify the rationality of the model. (C) 2014 American Society of Civil Engineers.
WOS研究方向	Engineering
语种	英语
出版者	ASCE-AMER SOC CIVIL ENGINEERS
WOS记录号	WOS:000340156700002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3616]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech
推荐引用方式 GB/T 7714	Chen, Cheng,Zhou, Zheng-ming. Nonlinear Cross-Anisotropic Model for Soils at Various Strain Levels[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2014,14(4):-.
APA	Chen, Cheng,&Zhou, Zheng-ming.(2014).Nonlinear Cross-Anisotropic Model for Soils at Various Strain Levels.INTERNATIONAL JOURNAL OF GEOMECHANICS,14(4),-.
MLA	Chen, Cheng,et al."Nonlinear Cross-Anisotropic Model for Soils at Various Strain Levels".INTERNATIONAL JOURNAL OF GEOMECHANICS 14.4(2014):-.