A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method

doi:10.1080/15376494.2023.2208112

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-)

	A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method
	Ding, Chenxi ; Liang, Xintong ; Yang, Renshu ; Zhang, ZongXian ; Guo, Xiao ; Feng C(冯春); Zhu XG(朱心广); Xie, Quanmin
刊名	MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
	2023-04
关键词	Crushed zone energy dissipation in-situ stress crack propagation stress evolution
ISSN号	1537-6494
DOI	10.1080/15376494.2023.2208112
英文摘要	Considering the energy consumption of the crushed zone caused by blasting, the energy dissipation characteristics were investigated through theoretical calculation and a plug-in for calculation of energy reduction was made. As a result, an improved CDEM method suitable for studying blast-induced crack propagation was proposed. The improved CDEM method was then used to numerically simulate the blast-induced crack propagation under three different in-situ stress conditions: uniaxial in-situ stress, biaxial equal in-situ stresses and biaxial unequal in-situ stresses. It was found that the in-situ stress conditions had significant effects on the distribution of the blast-induced cracks, the evolution of blast-induced stresses and the propagation of the blast-induced cracks. At the uniaxial in-situ stress condition, the vertical in-situ stress reduced the tip stresses of the horizontal crack and inhibited the propagation of the horizontal crack. At the biaxial equal in-situ stress condition, the peak radial stresses and circumferential stresses of the gauging points decreased gradually with the increase of in-situ stresses. In particular, the circumferential stresses of the gauging points gradually changed from tension to compression with an increasing in-situ stress. At the biaxial unequal in-situ stress condition, there were different inhibitions on crack propagation in the horizontal direction and the vertical one.
分类号	二类
WOS研究方向	WOS:000984809400001
语种	英语
资助机构	National Natural Science Foundation of China [52204085, 51934001] ; Interdisciplinary Research Project for Young Teachers of USTB ; Fundamental Research Funds for the Central Universities [QNXM20220010] ; Foundation of Hubei Key Laboratory of Blasting Engineering [BL2021-05]
其他责任者	Liang, XT
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92269]
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.(Feng Chun, Zhu Xinguang) Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing Peoples R China 2.(Guo Xiao) Univ Sci & Technol Beijing Sch Math & Phys Beijing Peoples R China 3.(Zhang Zong-Xian) Univ Oulu Oulu Min Sch Oulu Finland 4.(Ding Chenxi, Xie Quanmin) Jianghan Univ Hubei Key Lab Blasting Engn Wuhan Peoples R China 5.(Ding Chenxi, Liang Xintong, Yang Renshu) Univ Sci & Technol Beijing Key Lab Minist Educ High Efficient Min & Safety Met Mines Beijing Peoples R China 6.(Ding Chenxi, Liang Xintong, Yang Renshu) Univ Sci & Technol Beijing Sch Civil & Resource Engn Beijing 100083 Peoples R China
推荐引用方式 GB/T 7714	Ding, Chenxi,Liang, Xintong,Yang, Renshu,et al. A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method[J]. MECHANICS OF ADVANCED MATERIALS AND STRUCTURES,2023.
APA	Ding, Chenxi.,Liang, Xintong.,Yang, Renshu.,Zhang, ZongXian.,Guo, Xiao.,...&Xie, Quanmin.(2023).A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method.MECHANICS OF ADVANCED MATERIALS AND STRUCTURES.
MLA	Ding, Chenxi,et al."A study of crack propagation during blasting under high in-situ stress conditions based on an improved CDEM method".MECHANICS OF ADVANCED MATERIALS AND STRUCTURES (2023).