从拉伸的橡胶基材上剥下坚硬的球体

IF 4.5 3区工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Extreme Mechanics Letters Pub Date : 2025-07-26 DOI:10.1016/j.eml.2025.102381

Christopher W. Barney , Yue (Luna) Zheng

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引用次数: 0

摘要

聚合物涂层是一项重要的技术，可以在悬垂、干燥和冷却过程中产生预应力。本文旨在量化这些应力对压痕响应的影响。在拉伸和未拉伸的基板上执行球形探头压痕，其中监测接触区域的演变。与以往的工作一致，发现在拉伸基底上接触面积变为椭圆形。此外，还观察到该椭圆在压痕和剥离过程中动态演变。发现拉伸时接触面积的变化增加了表观刚度，降低了粘接响应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Peeling a rigid sphere from a stretched rubber substrate

Polymer coatings are an important technology where pre-stresses can develop during draping, drying, and cooling. This paper aims to quantify the impact that these stresses have on the indentation response. Spherical probe indentation is performed on a stretched and unstretched substrate where the evolution of the contact area is monitored. Consistent with previous works, it is found that the contact area becomes elliptical on stretched substrates. Further, it is observed that this ellipse dynamically evolves during the indentation and peel process. This change in contact area upon stretching is found to increase the apparent stiffness and decrease the adhesive response.

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来源期刊

Extreme Mechanics Letters Engineering-Mechanics of Materials

CiteScore

9.20

自引率

4.30%

发文量

179

审稿时长

45 days

期刊介绍： Extreme Mechanics Letters (EML) enables rapid communication of research that highlights the role of mechanics in multi-disciplinary areas across materials science, physics, chemistry, biology, medicine and engineering. Emphasis is on the impact, depth and originality of new concepts, methods and observations at the forefront of applied sciences.