In this article, we present a model for the dynamics of relaxation of friction stress at the interface between a soft and a hard surface during the hold phase of the slide-hold-slide (SHS) experiment. The proposed model assumes that during the stress relaxation process, the bonds between dangling chains at the sliding interface undergo strengthening, the extent of which depends on both the age of the bond as well as the sliding velocity. The model predicts the existence of the residual stress, which corresponds to the point of incipient adhesion of the sliding surfaces. The model is validated using experimental data, obtained from the literature, concerning sliding of gelatin hydrogels on glass substrate. Using the values of the parameters estimated from the regression analysis of the experimental data, the scaling laws based on dynamic shear modulus of gelatin hydrogel have been proposed.

在本文中，我们提出了一个模型，用于在滑动保持滑动（SHS）实验的保持阶段中，软表面和硬表面之间的界面处的摩擦应力松弛动力学。所提出的模型假设在应力松弛过程中，在滑动界面处的悬空链之间的键会得到加强，其程度取决于键的使用年限和滑动速度。该模型预测残余应力的存在，该残余应力对应于滑动表面的初期粘附点。使用从文献中获得的有关明胶水凝胶在玻璃基材上滑动的实验数据验证了该模型。使用根据实验数据的回归分析估算出的参数值，