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    A Comprehensive Experimental Study on Mechanical Behavior, Microstructure and Transport Properties of 3D-printed Rock Analogs

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    Type
    Article
    Authors
    Song, Rui cc
    Wang, Yao cc
    Ishutov, Sergey
    Zambrano-Narvaez, Gonzalo
    Hodder, Kevin J.
    Chalaturnyk, Rick J.
    Sun, Shuyu cc
    Liu, Jianjun
    Gamage, Ranjith P.
    KAUST Department
    Computational Transport Phenomena Lab
    Computational Transport Phenomena Laboratory (CTPL), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    BAS/1/1351-1301
    Date
    2020-09-08
    Online Publication Date
    2020-09-08
    Print Publication Date
    2020-12
    Embargo End Date
    2021-09-10
    Submitted Date
    2020-03-16
    Permanent link to this record
    http://hdl.handle.net/10754/665185
    
    Metadata
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    Abstract
    3D-printed (3DP) analogs of natural rocks have been used in laboratory tests concerning geomechanical and transport properties. Rock analogs manufactured by 3D printing can be used to manufacture batch of the samples with specified heterogeneity compared to natural rocks. Rock analogs were manufactured with silica sand (SS) and gypsum powder (GP) using binder jetting as well as with coated silica beads (CSB) using selective laser curing. The uniaxial and triaxial compressive tests were conducted to investigate the strength and deformation characteristics of 3DP rocks that were quantitatively compared with natural rocks. CSB and SS specimens experienced tensile failure, while the GP specimen has shown shear failure and shear-expansion behavior. The microstructural characteristics (e.g. grain shape, pore type, and bonding form) of the SS specimen were similar to a natural sandstone (Berea sandstone reported in the literature) with a relatively loose texture. In addition, 3DP rocks were more permeable than Berea sandstone (permeability of SS, CSB, and Berea sandstone was 12580.5 mD, 9840.5 mD, and 3950 mD, respectively). The effect of microscopic mechanical behavior on macroscopic strength and failure characteristics was investigated using scanning electronic microscopy. CSB and SS specimens could be suitable to simulate the transport behavior of the highly permeable sedimentary rocks. The GP specimen could be used to study the large deformation characteristics and creep failure mode of highly stressed soft rocks. Despite the early stage of 3DP rock analog studies, the potential applications could be expanded by controlling the physical properties (e.g. wettability and surface roughness).
    Citation
    Song, R., Wang, Y., Ishutov, S., Zambrano-Narvaez, G., Hodder, K. J., Chalaturnyk, R. J., … Gamage, R. P. (2020). A Comprehensive Experimental Study on Mechanical Behavior, Microstructure and Transport Properties of 3D-printed Rock Analogs. Rock Mechanics and Rock Engineering. doi:10.1007/s00603-020-02239-4
    Sponsors
    This paper is financially supported by National Science and Technology Major Project of China (Grant no. 2017ZX05013001-002); National Natural Science Foundation of China (Grant nos. 51909225, 51874262); King Abdullah University of Science and Technology (KAUST) (Grant no. BAS/1/1351-1301). The “Double First-Class Construction Fund” (Grant no. 20191230) from Southwest Petroleum University is great acknowledged. The China Scholarship Council is also acknowledged.
    Publisher
    Springer Nature
    Journal
    Rock Mechanics and Rock Engineering
    DOI
    10.1007/s00603-020-02239-4
    Additional Links
    http://link.springer.com/10.1007/s00603-020-02239-4
    ae974a485f413a2113503eed53cd6c53
    10.1007/s00603-020-02239-4
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program; Computational Transport Phenomena Lab

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