Elastoplastic Model for Transversely Isotropic Rocks

doi:10.1061/(ASCE)GM.1943-5622.0001070

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

	Elastoplastic Model for Transversely Isotropic Rocks
	Wang, Zhechao 2,3; Zong, Zhi 1; Qiao, Liping 4; Li, Wei 1
刊名	INTERNATIONAL JOURNAL OF GEOMECHANICS
	2018
卷号	18 期号:2 页码:-
关键词	Rock Transversely isotropic (TI) Elastoplastic property Constitutive modeling Parameter determination Plastic flow
ISSN号	1532-3641
DOI	10.1061/(ASCE)GM.1943-5622.0001070
英文摘要	The structure of the layered rocks is characterized by oriented bedding planes, resulting in transverse isotropy in deformation and strength. An elastoplastic constitutive model was proposed for transversely isotropic (TI) rock in this study. In the model, the generalized Hooke's law was adopted for the elastic behavior. For the plastic behavior, the yield criterion and plastic potential are formulated as functions of the generalized octahedral shear stress and the first invariant of stress tensor. A nonassociated flow rule and a stress-dependent hardening rule were adopted in the model. The plastic model can be simplified to the Drucker-Prager model for isotropic rocks. A methodology for the determination of model parameters was developed. The parameters can be determined by combining triaxial compression tests with torsion tests on specimens with different bedding directions. The constraint on plastic parameters was theoretically identified. The proposed model and the parameter determination methodology were applied to modeling the TI elastoplastic property of carbonaceous slate in triaxial compression. The results show that the model proposed in this study can well describe the transverse isotropic elastoplastic property of the rock, and the parameter determination methodology is simple and effective.
WOS研究方向	Engineering
语种	英语
出版者	ASCE-AMER SOC CIVIL ENGINEERS
WOS记录号	WOS:000418181600020
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4203]
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	1.Shandong Univ ; 2.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab ; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 4.Northeastern Univ, Dept Civil Engn
推荐引用方式 GB/T 7714	Wang, Zhechao,Zong, Zhi,Qiao, Liping,et al. Elastoplastic Model for Transversely Isotropic Rocks[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2018,18(2):-.
APA	Wang, Zhechao,Zong, Zhi,Qiao, Liping,&Li, Wei.(2018).Elastoplastic Model for Transversely Isotropic Rocks.INTERNATIONAL JOURNAL OF GEOMECHANICS,18(2),-.
MLA	Wang, Zhechao,et al."Elastoplastic Model for Transversely Isotropic Rocks".INTERNATIONAL JOURNAL OF GEOMECHANICS 18.2(2018):-.