Modeling of a bolted joint part to express the dynamic behavior of a structure

Abstract

Machines and structure are generally constructed with many elements and a junction area exists between elements. Various methods such as welding and riveting can be cited as a joining method of joining elements, and the method which widely used is the fastening by bolted joint. The static property of the jointed part was relatively well proved, for example, Rotscher cone of influence, while the dynamic property has not been cleared yet. In this study, we aim to propose a finite element model of bolted joint using structural analysis software ANSYS. The test piece is a structure in which two frame type structures are fastened using bolts and nuts and a numerical analysis result obtained by adjusting the contact condition of the two boards with the impact test result is prepared is prepared. And the contact condition of the two plates is proposed using the ratio between the optimum fixed area and the one of Rotscher cone of influence.