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首页> 外文期刊>International Journal of Solids and Structures >Computational modeling of surface phenomena in soft-wet materials
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Computational modeling of surface phenomena in soft-wet materials

机译：软湿材料中表面现象的计算建模

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We consider the problem of extracting tribological information from experimental observations of contact with soft-wet materials. Particular attention is placed on simulating the response of two rotating cyl_inders of soft specimens placed in frictional contact, with a variable coefficient of friction dependent on the relative sliding velocity. The bulk behavior is modeled by means of a finite deformation viscoelasticity formulation, with constitutive parameters taken to be representative of hydrogels. We focus on the mod_eling of the surface behavior and employ a mortar-finite element contact formulation. Through a series of numerical studies, we demonstrate the strong sensitivity of the results to the choice of interfacial consti_tutive parameters. The difficulties of extracting such parameters using only experimental data and approximate analytical expressions are also examined.
机译：我们考虑了从与软湿材料接触的实验观察中提取摩擦学信息的问题。特别要注意的是模拟放置在摩擦接触中的两个软样品旋转圆柱体的响应，其可变摩擦系数取决于相对滑动速度。本体行为通过有限变形粘弹性公式建模，其中本构参数代表水凝胶。我们专注于表面行为的建模，并采用砂浆有限元接触公式。通过一系列数值研究，我们证明了结果对界面构成参数选择的高度敏感性。还检查了仅使用实验数据和近似分析表达式提取此类参数的困难。

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