QQ客服 官方微博 反馈留言

	Strength criterion and elastoplastic constitutive model of frozen silt in generalized plastic mechanics
	Lai Yuanming; Yang Yugui; Chang Xiaoxiao; Li Shuangyang
刊名	INTERNATIONAL JOURNAL OF PLASTICITY
	2010-10-01
卷号	26期号:10页码:1461-1484
关键词	Strength criterion Yield surface Elastoplastic constitutive model Frozen silt
ISSN号	0749-6419
DOI	10.1016/j.ijplas.2010.01.007
通讯作者	Lai Yuanming(ymlai@lzb.ac.cn)
英文摘要	Triaxial compressive tests of frozen silt were carried out under confining pressures from 0.0 to 14.0 MPa at the temperatures of -2, -4 and -6 degrees C. A strength criterion based upon experimental results is presented by the combination of extended Lade-Duncan strength function f(pi)(0) in pi-plane and f(p-q)(p) in p-q-plane. In order to describe the deformation characteristic of frozen silt, an elastoplastic constitutive model in generalized plastic mechanics has been proposed for the nonlinear behavior of frozen silt, such as the pressure melting and crushing phenomena, strain softening/hardening characteristics and dilatation, etc., by employing an elliptical yield surface, together with a non-associated flow rule for the compressive mechanism, and two parabolic yield surfaces, together with non-associated flow rules for the shear mechanism. The validity of the model is verified by comparing its modeling results with the results of triaxial compressive tests. It is found that the stress-strain curves predicted by this model agree well with the corresponding experimental results both under low and high confining pressures. (C) 2010 Elsevier Ltd. All rights reserved.
收录类别	SCI
WOS关键词	GRANULAR-MATERIALS ; NONASSOCIATED FLOW ; RELAXED CONFIGURATIONS ; FAILURE ; STRAIN ; YIELD ; SOILS ; DEFORMATIONS ; EQUATIONS ; BEHAVIOR
WOS研究方向	Engineering ; Materials Science ; Mechanics
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000282902800004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556452
专题	寒区旱区环境与工程研究所
通讯作者	Lai Yuanming
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Lai Yuanming,Yang Yugui,Chang Xiaoxiao,et al. Strength criterion and elastoplastic constitutive model of frozen silt in generalized plastic mechanics[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2010,26(10):1461-1484.
APA	Lai Yuanming,Yang Yugui,Chang Xiaoxiao,&Li Shuangyang.(2010).Strength criterion and elastoplastic constitutive model of frozen silt in generalized plastic mechanics.INTERNATIONAL JOURNAL OF PLASTICITY,26(10),1461-1484.
MLA	Lai Yuanming,et al."Strength criterion and elastoplastic constitutive model of frozen silt in generalized plastic mechanics".INTERNATIONAL JOURNAL OF PLASTICITY 26.10(2010):1461-1484.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。