MODELLING BOLTED JOINTS USING A SIMPLIFIED BOLT MODEL

Abstract

The paper presents a part of research on bolted connections based on the system approach to the problem of their modelling and calculations. With this approach it is possible to individual consideration of each system element in order to find the best model of the element. The aim of this study is to develop a model of the single-bolted joint separated from the bolted connection. An analysis is conducted for the spider bolt model which is an equivalent model corresponding to the spatial bolt model. The effect of preload distribution in the spider bolt model on the stiffness value of the flange element fastened to a rigid support has been examined. The result of research is a proposal of the way of simplified bolt model preloading, which gives the best matching this model to the spatial bolt model.

Keywords:
bolted joint, preloaded bolt model, screw