Universal shielding effect of curvature on two interacting cracks

doi:10.1016/j.jmps.2023.105389

IMECH-IR > 非线性力学国家重点实验室

	Universal shielding effect of curvature on two interacting cracks
	Liu, Mengqi ; Zhen, Yu ; Sun, Yi; He, Linghui ; Wu, Kaijin ; Ni Y(倪勇)
发表期刊	JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
	2023-10-01
卷号	179 页码:105389
ISSN	0022-5096
摘要	The interaction of approaching cracks plays a crucial role in the formation of complex crack patterns in the mechanics and physics of materials defects. While curvature has been shown to be important in the growth, interaction, and ordering of various defects, its influence on the interactions of multiple cracks remains poorly understood. In this study, we investigate how two approaching cracks interact in curved sheets using an integrated mechanical framework combing experiments, fracture phase-field simulations, and theoretical analysis. Our findings demonstrate that the repulsive and attractive interactions between the two initially parallel cracks are significantly shielded by curvature. This shielding effect arises because curvature alters the stress fields at the crack tips and reduces the initial deflection angle of the crack tips. We observe this effect under different initial crack positions, material properties, and curved configurations, indicating a general role of curvature in controlling the paths and interactions of cracks. This study provides insights into understanding the interaction of approaching cracks, which has implications for fracture and fatigue control.
关键词	Curvature Fracture Crack propagation paths The interaction of multiple cracks Shielding effect
DOI	10.1016/j.jmps.2023.105389
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001050174600001
WOS研究方向	Materials Science ; Mechanics ; Physics
WOS类目	Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter
项目资助者	National Natural Science Foundation of China [12025206, 12202433] ; National Postdoctoral Program for Innovative Talents [BX2021284] ; Nature Science Foundation of Anhui Province [2208085QA25] ; USTC Research Funds of the Double First-Class Initiative [YD2090002010] ; China Postdoctoral Science Foundation [2022M723042]
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Wu, KJ ; Ni, Y (corresponding author), Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Anhui, Peoples R China. ; Ni, Y (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China.
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/92560
专题	非线性力学国家重点实验室
作者单位	1.{Liu, Mengqi, Zhen, Yu, Sun, Yi, He, Linghui, Wu, Kaijin, Ni, Yong} Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Anhui, Peoples R China 2.{Ni, Yong} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Mengqi,Zhen, Yu,Sun, Yi,et al. Universal shielding effect of curvature on two interacting cracks[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2023,179:105389.Rp_Au:Wu, KJ, Ni, Y (corresponding author), Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Anhui, Peoples R China., Ni, Y (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beisihuan West Rd, Beijing 100190, Peoples R China.
APA	Liu, Mengqi,Zhen, Yu,Sun, Yi,He, Linghui,Wu, Kaijin,&倪勇.(2023).Universal shielding effect of curvature on two interacting cracks.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,179,105389.
MLA	Liu, Mengqi,et al."Universal shielding effect of curvature on two interacting cracks".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 179(2023):105389.

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