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Theory on Bending in Cantilever Beams With Adsorbed Islands
Duan CC(段闯闯); Wei YJ(魏宇杰); Wei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationJOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
2017-07-01
Volume84Issue:7Pages:071006
ISSN0021-8936
Abstract

Traction between adsorbed islands and the substrate is commonly seen in both living and material systems: deposited material gathers into islands at the early stage of polycrystalline film deposition and generates stress due to lattice mismatch, cells exert cellular traction to extracellular matrix to probe their surrounding microenvironment in vivo, and so on. The traction between these islands and the substrate can result in perceivable macroscopic deformation in the substrate and may be measurable if the substrate is a cantilever beam. However, currently broadly used Stoney equation is incapable of handling such boundary condition. In this paper, we give the closed-form expression on the resulted curvature in substrate beams by distributed tractions. Such a relationship could be employed to monitor the stress evolution during thin film deposition, to quantify the stress level of cell traction as cells adhere to cantilever beams, and other related mechanical systems like charging-discharging induced stress in island-patterned electrode films. Moreover, we found that follower traction induced by an array of islands could lead to negative curvature. It shields light on the early stage compressive stress during polycrystalline film deposition.

KeywordAdsorbed Islands Stoney Equation Film Deposition Traction Bending
DOI10.1115/1.4036819
Indexed BySCI
Language英语
WOS IDWOS:000404714700006
WOS KeywordTHIN-FILM ELECTRODES ; STRESS EVOLUTION ; SILICON ELECTRODES ; INTRINSIC STRESSES ; IN-SITU ; GROWTH ; LITHIATION ; SUBSTRATE ; LOCOMOTION ; DEPOSITION
WOS Research AreaMechanics
WOS SubjectMechanics
Funding OrganizationNational Natural Science Foundation of China (NSFC)(11425211)
DepartmentLNM微结构计算力学
Classification一类/力学重要期刊
Ranking1
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60367
Collection非线性力学国家重点实验室
Corresponding AuthorWei, YJ (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Duan CC,Wei YJ,Wei, YJ . Theory on Bending in Cantilever Beams With Adsorbed Islands[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2017,84(7):071006.
APA 段闯闯,魏宇杰,&Wei, YJ .(2017).Theory on Bending in Cantilever Beams With Adsorbed Islands.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,84(7),071006.
MLA 段闯闯,et al."Theory on Bending in Cantilever Beams With Adsorbed Islands".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 84.7(2017):071006.
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