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<p>Using a custom-built microtribometer, the stick–slip behavior of a single elastic string in Hertz contact with a cylindrical glass lens was observed in situ, collecting dynamic contact area and friction force data during the adhesion phase. The results indicate that stick–slip occurs periodically due to repeated contact and elastic deformation. The friction pair was modeled for both translational and rotational movement, quantifying energy changes during the adhesion phase. It was inferred that slip occurs due to instability when the contact area reaches its maximum, which is possibly determined by a combination of factors including surface roughness, rubber deformation, and cylindrical rotation. These findings provide new insight into the macroscopic frictional properties of fiber-structured surfaces.</p>

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In-situ Investigation of Stick–Slip Behavior of an Elastic String: Insights into Fiber-Based Friction

  • 期刊论文

  • 发表日期：

    2025年11月3日

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  • Zitong Huang,
  • Qingrui Song,
  • Kun Liu,
  • Jiaxin Ye

摘要

Using a custom-built microtribometer, the stick–slip behavior of a single elastic string in Hertz contact with a cylindrical glass lens was observed in situ, collecting dynamic contact area and friction force data during the adhesion phase. The results indicate that stick–slip occurs periodically due to repeated contact and elastic deformation. The friction pair was modeled for both translational and rotational movement, quantifying energy changes during the adhesion phase. It was inferred that slip occurs due to instability when the contact area reaches its maximum, which is possibly determined by a combination of factors including surface roughness, rubber deformation, and cylindrical rotation. These findings provide new insight into the macroscopic frictional properties of fiber-structured surfaces.