Constitutive equation for friction with transition from static to kinetic friction and recovery of static friction
Constitutive equation for friction with transition from static to kinetic friction and recovery of static friction
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DOI：
10.1016/j.ijplas.2008.03.004
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发表时间：
2008-11
影响因子：
9.8
通讯作者：
K. Hashiguchi;S. Ozaki
中科院分区：
文献类型：
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作者：
K. Hashiguchi;S. Ozaki
当物体之间开始滑动时，首先观察到高摩擦系数，这被称为静摩擦。然后，摩擦系数减小，接近最低的固定值，这被称为动摩擦。此后，如果滑动停止一段时间然后再次开始，则摩擦系数恢复并且再现与第一次滑动中的行为类似的行为。在本文中，具有光滑弹塑性滑动过渡的次加载摩擦模型[Hashiguchi，K.，Ozaki，S.，Okayasu，T.，2005.基于副加载面概念的非常规摩擦理论。Int.J.SolidsStruct.42，1705-1727]中所述的方法，以便描述从静摩擦到动摩擦的减少以及静摩擦的恢复。该减少被配制为塑性软化，由于分离的表面粗糙的粘附诱导的滑动和恢复被配制为粘塑性（蠕变）硬化，由于重建的粘附的表面粗糙度在过去的时间在一个相当高的实际接触压力下的粗糙边缘之间。
A high friction coefficient is first observed as a sliding between bodies commences, which is called the static friction. Then, the friction coefficient decreases approaching the lowest stationary value, which is called the kinetic friction. Thereafter, if the sliding stops for a while and then it starts again, the friction coefficient recovers and a similar behavior as that in the first sliding is reproduced. In this article the subloading-friction model with a smooth elastic–plastic sliding transition [Hashiguchi, K., Ozaki, S., Okayasu, T., 2005. Unconventional friction theory based on the subloading surface concept. Int. J. Solids Struct. 42, 1705–1727] is extended so as to describe the reduction from the static to kinetic friction and the recovery of the static friction. The reduction is formulated as the plastic softening due to the separations of the adhesions of surface asperities induced by the sliding and the recovery is formulated as the viscoplastic (creep) hardening due to the reconstructions of the adhesions of surface asperities during the elapse of time under a quite high actual contact pressure between edges of asperities.