气候变化领域集成服务门户(CCPortal): Research on Ottosen constitutive model of frozen soil under impact load

CCPortal

DOI	10.1016/j.ijrmms.2020.104544
	Research on Ottosen constitutive model of frozen soil under impact load
	Zhu, Zhiwu; Fu, Tiantian; Zhou, Zhiwei; Cao, Chenxu
通讯作者	Zhu, ZW (通讯作者)，Southwest Jiaotong Univ, Sch Mech & Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 610031, Peoples R China.
发表日期	2021
ISSN	1365-1609
EISSN	1873-4545
卷号	137
英文摘要	Impact blasting loading is an unavoidable problem in cold area construction. In this study, the dynamic characteristics of frozen soil with a water content of 20% and different freezing temperatures are studied under the impact of a spilt Hopkinson pressure bar. Two aspects of the dynamic mechanical response are analyzed to describe the experimental results: temperature rises and the failure mechanism. A rate damage equation is derived considering the improved Ottosen model and thermal activation theory. The experimental results indicate that the improved nonlinear model can be applied to understand the impact mechanics of frozen soil and predict the evolution law of typical mechanical indexes.
关键词	DYNAMIC-MECHANICAL PROPERTIES YIELD CRITERION BEHAVIOR CONCRETE STRESS DAMAGE PRESSURE STRAIN CREEP DEFORMATION
英文关键词	Sandy soil; Split Hopkinson pressure bar; Rate sensitive; Failure; Stress-strain relation
语种	英语
WOS研究方向	Engineering ; Mining & Mineral Processing
WOS类目	Engineering, Geological ; Mining & Mineral Processing
WOS记录号	WOS:000612081400005
来源期刊	INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254975
作者单位	[Zhu, Zhiwu; Fu, Tiantian; Cao, Chenxu] Southwest Jiaotong Univ, Sch Mech & Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 610031, Peoples R China; [Zhu, Zhiwu; Zhou, Zhiwei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Fu, Tiantian] Southwest Jiaotong Univ, State Key Lab Tract Power, Chengdu 610031, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Zhiwu,Fu, Tiantian,Zhou, Zhiwei,et al. Research on Ottosen constitutive model of frozen soil under impact load[J]. 中国科学院西北生态环境资源研究院,2021,137.
APA	Zhu, Zhiwu,Fu, Tiantian,Zhou, Zhiwei,&Cao, Chenxu.(2021).Research on Ottosen constitutive model of frozen soil under impact load.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,137.
MLA	Zhu, Zhiwu,et al."Research on Ottosen constitutive model of frozen soil under impact load".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 137(2021).