Dataset on friction hysteresis of bolted joints

Friction forces and relative displacements are given as a function of time. The relative displacement between the interfaces was measured using a single laser vibrometer. The friction force transmitted over the interfaces was measured using a load cell. The bolt preload was measured using a force washer. In addition, contact parameters (namely tangential contact stiffness and friction coefficient) were estimated. The bolted joint specimens under tests were made of ASTM 304 stainless steel. The tested bolts are class 8.8 M6 made of carbon steel. The roughness Ra of the contact surfaces of the joint samples is around 1 μm. These data can be reused for the calibration of contact models.

摩擦力与相对位移随时间的变化关系被提供。通过单激光振动计测量了界面间的相对位移。利用载荷传感器测量了跨越界面的摩擦力。螺栓预紧力通过力清洁器进行测量。此外，接触参数（即切向接触刚度和摩擦系数）亦被估算。测试中的螺栓连接试样由ASTM 304不锈钢制成。所测试的螺栓为8.8级M6碳钢螺栓。连接样品的接触表面粗糙度Ra约为1微米。这些数据可用于接触模型的校准。