ねじ込みボルトによるねじ締結体の特性について : 全面座金属平形ガスケットを用いた被締結体が圧力容器ふたおよび円形フランジモデルの場合

概要

論文の詳細を見る
The design method of bolted joints with gaskets is almost based on experience, and the sealing performance is not made clear by theoretical analyses. In the present paper, discussion is made on the distribution of contact stress in the bolted joints fastened with tap bolts, when a clamped part with a gasket is the cover of a pressure vessel and a circular flange. The distribution of contact stress is analyzed as a three-body contact problem, using the three dimensional theory of elasticity. Moreover, the contact stress is measured by means of ultrasonic-waves. In addition, the force ratio (the ratio of an increment of the bolt axial force to an external load) and the maximum stress caused in bolts taking account of a bending moment are analyzed. For verification, experiments are carried out, and the analytical results are in fairly good agreement with the experimental ones.
一般社団法人日本機械学会の論文
1986-04-25