Adhesion hysteresis was investigated with the energy dissipation in the contact experiments between a spherical glass lens and a polydimethylsiloxane (PDMS) block. The experiments were conducted under step-by-step loading–unloading for the spontaneous energy dissipation. The force, contact radius, and displacement were measured simultaneously and the elasticity of the PDMS was confirmed. The work of adhesion was estimated in the loading process of the strain energy release rate. The total energy dissipation has been observed to be linearly proportional to the contact radius in the unloading process. The approximately constant gradient of the energy dissipation for each unloading process has been found. The result would provide how the dissipation is induced during the unloading as some interfacial phenomena. The fact has been discussed with some interfacial phenomena, e.g., the adsorbates on the surface, for the mechanism of adhesion hysteresis.

中文翻译：

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评估与玻璃透镜和PDMS块之间的球形接触中的粘附滞后有关的能量耗散

在球形玻璃透镜和聚二甲基硅氧烷（PDMS）块之间的接触实验中，利用能量耗散研究了粘合滞后。实验是在逐步加载-卸载下进行的，以实现自发的能量消散。同时测量力，接触半径和位移，并确认PDMS的弹性。在应变能释放速率的加载过程中估计了粘附功。已经观察到总的能量消耗在卸载过程中与接触半径成线性比例。已经发现每个卸载过程的能量消耗的近似恒定梯度。结果将提供在卸载过程中如何引起耗散作为某些界面现象。