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    Morphological evolution and internal strain mapping of pomelo peel using X-ray computed tomography and digital volume correlation

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    Type
    Article
    Authors
    Wang, B.
    Pan, B.
    Lubineau, Gilles cc
    KAUST Department
    Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-10-15
    Online Publication Date
    2017-10-15
    Print Publication Date
    2018-01
    Permanent link to this record
    http://hdl.handle.net/10754/625893
    
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    Abstract
    Cellular microstructures within natural materials enlighten and promote the development of novel materials and structures in the industrial and engineering fields. Characterization of the microstructures and mechanical properties of these natural materials can help to understand the morphology-related mechanical properties and guide the structural optimization in industrial design. Among these natural cellular materials, pomelo peels, having a foam-like hierarchical microstructure, represent an ideal model for developing materials with high energy absorption efficiency. In this work, by combining X-ray tomographic imaging technique and digital volume correlation (DVC), in-situ stepwise uniaxial compression tests were performed to quantify the internal morphological evolution and kinematic responses of pomelo peel samples during compression. Via these experiments, the varying microstructure features and thus diverse resistance to compression from endocarp to exocarp are examined, and the evolution of both bundles bending and large strain domain from endocarp to mesocarp are explored. Based on the experimental results, the microstructure-related mechanical properties of pomelo peels in response to compressive loading that demonstrates nearly linear morphology-mechanics relationship were revealed.
    Citation
    Wang B, Pan B, Lubineau G (2017) Morphological evolution and internal strain mapping of pomelo peel using X-ray computed tomography and digital volume correlation. Materials & Design. Available: http://dx.doi.org/10.1016/j.matdes.2017.10.038.
    Sponsors
    This work was supported by the National Natural Science Foundation of China (Grant nos. 11427802, and 11632010), the Aeronautical Science Foundation of China (2016ZD51034). We also thank King Abdullah University of Science and Technology (KAUST) for its support.
    Publisher
    Elsevier BV
    Journal
    Materials & Design
    DOI
    10.1016/j.matdes.2017.10.038
    Additional Links
    http://www.sciencedirect.com/science/article/pii/S0264127517309656
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.matdes.2017.10.038
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program

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