| Universal shielding effect of curvature on two interacting cracks | |
Liu, Mengqi; Zhen, Yu; Sun, Yi ; He, Linghui; Wu, Kaijin; Ni Y(倪勇)
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| Source Publication | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
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| 2023-10-01 | |
| Volume | 179Pages:105389 |
| ISSN | 0022-5096 |
| Abstract | 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. |
| Keyword | Curvature Fracture Crack propagation paths The interaction of multiple cracks Shielding effect |
| DOI | 10.1016/j.jmps.2023.105389 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001050174600001 |
| WOS Research Area | Materials Science ; Mechanics ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| Funding Organization | 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] |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | 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. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/92560 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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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| Jp2023Fa176.pdf（7523KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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