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Mechanistic analysis of force-displacement measurements on macroscopic single adhesive pillars

机译:宏观单根胶柱上力-位移测量的力学分析

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摘要

Force-displacement measurements were performed on single macroscopic polydimethyl-siloxane pillars. The pillars had diameters of 400 urn, aspect ratios between 1 and 5, and spherical, flat, and mushroom shaped tips. We present a method to derive numerous parameters, e.g. stress, strain, elastic modulus, and work of separation from these force-displacement measurements. We also show that the deformation of the pillar, their tips and the backing layers can be separately identified from the same experiments. This method can help to better characterize the mechanical properties of polymeric microstructures using a simple experimental approach.
机译:力-位移测量是在单个宏观的聚二甲基硅氧烷支柱上进行的。柱子的直径为400微米,长径比为1-5,球形,扁平和蘑菇形尖端。我们提出一种导出大量参数的方法,例如应力,应变,弹性模量以及这些力-位移测量的分离功。我们还表明,可以从同一实验中分别识别出支柱,其尖端和背衬层的变形。这种方法可以使用简单的实验方法帮助更好地表征聚合物微结构的机械性能。

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