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    On controlling interfacial heterogeneity to trigger bridging in secondary bonded composite joints: An efficient strategy to introduce crack-arrest features

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    pagination_CSTE_107964.pdf
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    1.490Mb
    Format:
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    Description:
    Accepted manuscript
    Embargo End Date:
    2021-12-24
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    Type
    Article
    Authors
    Tao, Ran cc
    Li, Xiaole
    Yudhanto, Arief cc
    Alfano, Marco
    Lubineau, Gilles cc
    KAUST Department
    Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    OSR-2017-CRG6-3388.01
    Date
    2019-12-24
    Online Publication Date
    2019-12-24
    Print Publication Date
    2020-03
    Embargo End Date
    2021-12-24
    Permanent link to this record
    http://hdl.handle.net/10754/660935
    
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    Abstract
    Secondary adhesive bonding of carbon fiber-reinforced polymer laminates is of great interest for the aerospace and automotive industries. However, joint reliability is still a major concern because of fabrication-induced or service-related cracks that are difficult to monitor and can lead to catastrophic failure. In this work, we propose a patterning strategy where the careful design of spatially-varying interface properties enables the formation of an adhesive ligament that acts as a crack-arrest feature. Bi-dimensional finite element models of adhesively bonded double cantilever beams were employed to investigate the role of the main parameters of the pattern (i.e, geometrical parameters and interfacial properties) under mode I loading. The results show that an adhesive ligament can either bridge the separating arms, largely enhancing the dissipated energy, or fail, thereby limiting the attainment of a R-curve-like response. The precise scenario is heavily dependent on the contrast in interfacial properties rather than the geometrical details of the pattern.
    Citation
    Tao, R., Li, X., Yudhanto, A., Alfano, M., & Lubineau, G. (2020). On controlling interfacial heterogeneity to trigger bridging in secondary bonded composite joints: An efficient strategy to introduce crack-arrest features. Composites Science and Technology, 188, 107964. doi:10.1016/j.compscitech.2019.107964
    Sponsors
    The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award number OSR-2017-CRG6-3388.01.
    Publisher
    Elsevier BV
    Journal
    Composites Science and Technology
    DOI
    10.1016/j.compscitech.2019.107964
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0266353819327472
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.compscitech.2019.107964
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program

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