ねじ締結体の脆性破壊

抄録

In this paper, the brittle fracture strength of screw joint specimens was investigated experimentally. As a result, the effects of length of thread engagement, number of free thead and initial tightening torque on the brittle fracture strength of screw joint were made clear. The brittle fracture strength of circumferentially notched round bar was also investigated.
It was found that the brittle fracture strength of screw joint was nearly equal to that of circumferentially notched round bar, in the case where diameter, notch depth and notch acuity of both specimens were the same.