Evolution characteristics of crack and energy of low-grade highway under impact load

doi:10.1080/10298436.2021.1886294

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Evolution characteristics of crack and energy of low-grade highway under impact load
	Lin QD(林钦栋)1,2; Feng C(冯春)2; Zhu XG(朱心广)1,2; Zhang GH(张耕豪)1,2; Li SH(李世海)1,2
刊名	INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
	2021-02-20
页码	16
关键词	Impact load low-grade highway evolution characteristic of deflection evolution characteristic of crack evolution characteristic of energy
ISSN号	1029-8436
DOI	10.1080/10298436.2021.1886294
通讯作者	Feng, Chun(fengchun@imech.ac.cn)
英文摘要	To analyse the feasibility of the low-grade highway as a launch site in military applications and improve the pavement crushing technology in civilian applications, this study investigates the evolution characteristics of a low-grade highway under impact load, including deflection, crack, and energy, via the continuum-discontinuum element method (CDEM). To this end, this paper proposes an energy statistics algorithm, and the correctness is verified. Then, a quarter three-dimensional numerical model of an asphalt concrete highway is established, and the effectiveness of CDEM in simulating the deflection of the highway under impact load is validated. Finally, an existing asphalt concrete highway structure is selected to study the evolution characteristics via numerical simulation. The results demonstrate the consistency between the variations of deflection at the load centre and the impact load. The deflection is primarily caused by the compressive deformation of subgrade. Crack planes mainly occur when the impact load increases rapidly. The variation of various constituent energies is different but closely related to the change in impact load.
分类号	二类
资助项目	Ministry of Science and Technology of the People's Republic of China[2018YFC1505504]
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
语种	英语
WOS记录号	WOS:000621660400001
资助机构	Ministry of Science and Technology of the People's Republic of China
其他责任者	Feng, Chun
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86136]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China;
推荐引用方式 GB/T 7714	Lin QD,Feng C,Zhu XG,et al. Evolution characteristics of crack and energy of low-grade highway under impact load[J]. INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING,2021:16.
APA	林钦栋,冯春,朱心广,张耕豪,&李世海.(2021).Evolution characteristics of crack and energy of low-grade highway under impact load.INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING,16.
MLA	林钦栋,et al."Evolution characteristics of crack and energy of low-grade highway under impact load".INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING (2021):16.