In this study, we investigate the effects of thermal fluctuations on the generalized Johnson–Kendall–Roberts (JKR) model. We show that the distribution of pull-off forces in this model is similar to that of the Bradley model, and is also consistent with the experiment result observed in Wierez-Kien et al. (Nanotechnology 29(15):155704 2018). Increasing temperature leads to a broadening of the distribution, while leads to a reduction of the pull-off force. Additionally, the pull-off force, which is separated into an athermal term and a thermal-induced reduction term, is measured by using spring velocity ranging over 5 orders of magnitude. We show that for compliant spring, the pull-off force is significantly enhanced with increasing velocity, which is mainly attributed to the contribution of the thermal-induced reduction term, while the athermal term is barely sensitive to changes in velocity.

在这项研究中，我们调查了热涨落对广义Johnson-Kendall-Roberts（JKR）模型的影响。我们表明，该模型中的拉力分布与Bradley模型相似，并且与Wierez-Kien等人观察到的实验结果一致。（纳米技术29（15）：155704 2018）。温度升高导致分布变宽，而拉拔力降低。另外，通过使用超过5个数量级的弹簧速度来测量拉力，该拉力分为无热项和热致还原项。我们表明，对于顺应性弹簧，拉拔力会随着速度的增加而显着增强，这主要归因于热诱导还原项的贡献，