粘弹性粗糙接触中的粘附和摩擦

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-07-24 DOI:10.1016/j.triboint.2025.111000

Michele Mastropasqua , Andrea Ronchi , Antonio Serra , Nicola Menga , Giuseppe Carbone

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引用次数: 0

摘要

在现代工程的许多应用领域中，粘弹性接触的粘着和摩擦控制是至关重要的。在这项研究中，我们研究了粗糙型材滑动过粘弹性半平面的粘接接触。我们解决了在接触域的虚拟无穷小变化下，在内应力和粘接工作之间实现能量平衡的多尺度接触问题。我们的研究结果表明，接触边缘和大块材料中的粘弹性和粘弹性之间的相互作用是由多尺度粗糙度促进的，最终导致在特征滑动速度下接触面积和摩擦的强烈增加。最后，我们比较了正弦压头（单波长）和粗糙压头（多尺度）的摩擦行为，表明在两种情况下都发生了粘附诱导的摩擦增强。

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Adhesion and friction in viscoelastic rough contacts

Controlling adhesion and friction in viscoelastic contacts is crucial in several application fields of modern engineering. In this study, we investigate the adhesive contact of rough profiles sliding past a viscoelastic half-plane. We solve the multiscale contact problem enforcing energy balance between internal stresses and adhesive works under virtual infinitesimal variations of the contact domain. Our findings indicate that the interplay between adhesion and viscoelasticity at the contact edges and in the bulk material is fostered by multiscale roughness, eventually leading to strongly increased contact area and friction at characteristic sliding velocities. Finally, we compare the frictional behavior of a sinusoidal indenter (single wavelength) with the rough case (multiscale), showing that adhesion-induced friction enhancement occurs in both cases.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.