THREE DIMENSIONAL ANALYSIS OF BOLTED JOINT MEMBER STIFFNESS USING FRUSTA METHOD

Abstract

Joint member stiffness has a great influence for both static and dynamic loading for a safe mechanical design of many types of bolted- jointed member connections. A three dimensional mathematical model for the jointed member system has been derived. This work provides a simple mathematical technique used to calculate different types a jointed member stiffness of a bolted connections. A finite element analysis is performed for the bolted joint and the model is used to predict stress field for a Grey Cast iron and aluminum alloy. Joint member stiffness is presented against member aspect ratio in dimensionless form. Results show good agreement as compared with those of used techniques of Montosh and Marschke