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Three-Dimensional Microscale Imaging and Measurement of Soft Material Contact Interfaces under Quasi-Static Normal Indentation and Shear

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Download Hi-Res ImageDownload to MS-PowerPointCite This:Langmuir 2019, 35, 33, 10725-10733
    Article

    Three-Dimensional Microscale Imaging and Measurement of Soft Material Contact Interfaces under Quasi-Static Normal Indentation and Shear
    Click to copy article linkArticle link copied!

    • Karl G. Johannes*
      Karl G. Johannes
      Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
      *E-mail: [email protected]
      More by Karl G. Johannes
      Orcidhttp://orcid.org/0000-0003-0338-5295
    • Kristin N. Calahan
      Kristin N. Calahan
      Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
      More by Kristin N. Calahan
    • Yuan Qi
      Yuan Qi
      Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
      More by Yuan Qi
    • Rong Long
      Rong Long
      Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
      More by Rong Long
    • Mark E. Rentschler
      Mark E. Rentschler
      Department of Mechanical Engineering, University of Colorado, Boulder, Colorado 80309, United States
      More by Mark E. Rentschler
    Other Access OptionsSupporting Information (2)

    Langmuir

    Cite this: Langmuir 2019, 35, 33, 10725–10733
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    https://doi.org/10.1021/acs.langmuir.9b00830
    Published July 10, 2019
    Copyright © 2019 American Chemical Society
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    Abstract

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    Abstract Image

    Understanding the contact and friction between soft materials is vital to a wide variety of engineering applications including soft sealants and medical devices such as catheters and stents. Although the mechanisms of friction between stiff materials have been extensively studied, the mechanisms of friction between soft materials are much less understood. Time-dependent material responses, large deformations, and fluid layers at the contact interface, common in soft materials, pose new challenges toward understanding the friction between soft materials. This article aims to characterize the three-dimensional (3D) contact interfaces in soft materials under large deformations and complex contact conditions. Specifically, we introduce a microindentation and visualization (MIV) system capable of investigating soft material contact interfaces with combined normal and shear loading. When combined with a laser scanning confocal microscope, the MIV system enables the acquisition of 3D image stacks of the deformed substrate and the indenter under fixed normal and shear displacements. The 3D imaging data allows us to quantify the 3D contact profiles and correlate them with the applied normal and shear displacements. Using a spherical indenter and a hydrogel substrate as a model system, we demonstrate that the MIV system and the associated analysis techniques accurately measure the contact area under combined normal and shear loading. Although the limited speed of confocal scanning implies that this method is most suitable for quasi-static loading conditions, potential methods to increase the imaging speed and the corresponding trade-off in image resolution are discussed. The method presented here will be useful for the future investigation of soft material contact and friction involving complex surface geometries.

    Copyright © 2019 American Chemical Society

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    Supporting Information

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    The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.langmuir.9b00830.

    • Detailed description of materials preparation, MIV system characterization, finite element analysis, experimental methods, and anlysis techniques (PDF)

    • MIV system overview and 3D experimental results (MP4)

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    Cited By

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    This article is cited by 11 publications.

    1. Kristin N. Calahan, Karl G. Johannes, Xingwei Yang, Rong Long, Mark E. Rentschler. Density of Micropillar Array Influences Shear Traction of Individual Pillars on Soft Substrates. ACS Applied Engineering Materials 2024, 2 (1) , 1-9. https://doi.org/10.1021/acsaenm.3c00466
    2. Huixin Wei, Zhiyong Wang, Xinhao Tu, Xuanshi Cheng, Linan Li, Shibin Wang, Chuanwei Li. Does static friction information predict the onset of sliding for soft material?. International Journal of Solids and Structures 2024, 305 , 113087. https://doi.org/10.1016/j.ijsolstr.2024.113087
    3. Kevin N. Eckstein, John E. Hergert, Asais Camila Uzcategui, Sarah A. Schoonraad, Stephanie J. Bryant, Robert R. McLeod, Virginia L. Ferguson. Controlled Mechanical Property Gradients Within a Digital Light Processing Printed Hydrogel-Composite Osteochondral Scaffold. Annals of Biomedical Engineering 2024, 52 (8) , 2162-2177. https://doi.org/10.1007/s10439-024-03516-x
    4. Huixin Wei, Shibin Wang, Chuanwei Li, Zhiyong Wang, Xin Sun, Cuiru Sun, Linan Li, Zongze Huo. Study on Friction Behaviors of Soft Materials Considering Sliding-Caused Deformation. International Journal of Applied Mechanics 2023, 15 (10) https://doi.org/10.1142/S1758825123500849
    5. Huixin Wang, Yunhai Ma, Zongchun Bai, Jianlong Liu, Lianfei Huo, Qinghua Wang. Evaluation of tribological performance for laser textured surfaces with diverse wettabilities under water/oil lubrication environments. Colloids and Surfaces A: Physicochemical and Engineering Aspects 2022, 645 , 128949. https://doi.org/10.1016/j.colsurfa.2022.128949
    6. Kristin N. Calahan, Yuan Qi, Karl G. Johannes, Mark E. Rentschler, Rong Long. Local lateral contact governs shear traction of micropatterned surfaces on hydrogel substrates. Science Advances 2022, 8 (25) https://doi.org/10.1126/sciadv.abn2728
    7. Junyuan Huang, Yingchun Guan, Seeram Ramakrishna. Tribological behavior of femtosecond laser-textured leaded brass. Tribology International 2021, 162 , 107115. https://doi.org/10.1016/j.triboint.2021.107115
    8. A. J. McGhee, E. O. McGhee, J. E. Famiglietti, K. D. Schulze. Dynamic Subsurface Deformation and Strain of Soft Hydrogel Interfaces Using an Embedded Speckle Pattern With 2D Digital Image Correlation. Experimental Mechanics 2021, 61 (6) , 1017-1027. https://doi.org/10.1007/s11340-021-00713-w
    9. Gregory A. Formosa, J. Micah Prendergast, J. Sean Humbert, Mark E. Rentschler. Nonlinear Dynamic Modeling of a Robotic Endoscopy Platform on Synthetic Tissue Substrates. Journal of Dynamic Systems, Measurement, and Control 2021, 143 (1) https://doi.org/10.1115/1.4048190
    10. Justin D. Glover, Jonathan T. Pham. Capillary-driven indentation of a microparticle into a soft, oil-coated substrate. Soft Matter 2020, 16 (25) , 5812-5818. https://doi.org/10.1039/D0SM00296H
    11. Yuan Qi, Kristin N. Calahan, Mark E. Rentschler, Rong Long. Friction between a plane strain circular indenter and a thick poroelastic substrate. Mechanics of Materials 2020, 142 , 103303. https://doi.org/10.1016/j.mechmat.2019.103303
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    Langmuir

    Cite this: Langmuir 2019, 35, 33, 10725–10733
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.langmuir.9b00830
    Published July 10, 2019
    Copyright © 2019 American Chemical Society
    Request reuse permissions

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