EXPERIMENTAL STUDY OF THE TORQUE-TENSION RELATIONSHIP FOR BOLTED JOINT

摘要

An experimental approach to determine the torque-tension relationship for a typically used bolted joint was developed. In addition to the bulk torque-tension relationship, the experiments measured the thread friction and the bearing friction between the nut face and the clamped surface. Experimental studies were conducted to study the influence of the use of washers made of different materials under repeated tightening. A statistics analysis was conducted to allow for a reliability assessment of the bolted joints in terms of the clamping force control.