CFRP部材のねじ締結特性に関する研究

抄録

In general, tapping screws are used for tightening of CFRP member. However since tapping screws are tightened while forming internal threads, residual stress is generated at the thread roots of the internal threads. Hence it is considered that the tightening strength decreases. In our previous study, we found that the tightening strength of the CFRP member tightened with metric threads was higher than that of the tapping screw. In this study, we investigated the effects of lubricant on tightening characteristics of CFRP members due to metric threads. As a result of this study, it was found that lubricants are counterproductive in the tightening of CFRP by the metric threads.