STUDIES ON FACTORS INFLUENCING THE BEHAVIOR OF BOLTED FLANGED JOINTS

Revathy S J, Sonali Gyan, Sneha Varghese, Raju BS

Abstract: This article aims to study the parameters influencing the overall behavior of bolted flanged joints. Three dimensional finite element analysis has been extensively used to study the performance of bolted joints for eccentric tensile loading. Pretension in the bolt is modeled using ANSYS pretension element (PRETS179) which can be used on solid or line element types. Surface-tosurface contact elements are used to account for the contact pressure at various flange interfaces. The parameters considered for the study are bolt load, contact pressure between flanges and washers, flange opening and strains in the bolt. The effect of preload on various parameters is studied. This paper illustrates the behavior of bolted flanged joints in entirety and brings out the effect of prying action on the bolted flanged joint.

Keywords: Bolt Load , Bolted joint, Contact Elements, Contact Pressure, External load, Pretension, Strains

DOI: https://doi.org/10.15623/ijret.2015.0410056