# Contact Pressure Distribution in Joints Formed by V-Band Clamps

Barrans, Simon, Khodabakhshi, G. and Xu, Qiang (2014) Contact Pressure Distribution in Joints Formed by V-Band Clamps. Advanced Materials Research, 1016. pp. 34-38. ISSN 1662-8985

## Abstract

V-band clamps offer an efficient clamping solution in diverse applications including process equipment, exhaust systems and air handling. This paper studies the distribution of interface contact pressure between the V-band and flange when the coupling is established. The determination of the contact area and pressure distribution in a joint is essential information, as it determines the integrity of the coupling. A three dimensional finite element model has been developed for this purpose. Contrary to the previous assumption in developing axisymmetric models, the 3D results showed that the contact pressure is non-uniform around the circumference of V-band with maximum contact pressure near the T-bolt area. This is in agreement with the theory in the literature. The presence and magnitude of friction has a noticeable influence on the form of the interface pressure distribution curve. It is also shown that the diameter of the band interacts with the effect of friction.

Item Type: Article V-section band clamp, Marman clamp, clamp load, contact pressure T Technology > TJ Mechanical engineering and machineryT Technology > TL Motor vehicles. Aeronautics. Astronautics School of Computing and EngineeringSchool of Computing and Engineering > Turbocharger Research Institute Author [1] H. Guo, D. Wang, and E. Liang, A Methodology to Predict Axial Clamping Force and Anti-rotating Torque for V-band Joint, SAE Technical Paper, (2010). [2] Z.Y. Qin, S.Z. Yan and F.L. Chu, Finite element analysis of the clamp band joint, Applied mathematical modelling. 36, 463–477 (2012).[3] H.Y. Yoon and Y.E. Hwang, Sealing performance test for V-insert clamp applicable to automobile exhaust pipes. Proc IMechE, C: J Mechanical Engineering Science, v227, 2228-2235 (2013).[4] R. Mountford, Design of clamp joints. Engineering Designers, pp. 37-40 (1980)[5] K. Shoghi, S.M. Barrans, H.V. Rao, Stress in V-section band clamps. Proc IMechE, C: J Mechanical Engineering Science, v218, 251-261 (2004).[6] K. Shoghi, Stress and Strain Analysis of flat and V-section band clamps. University of Huddersfield. PhD (2003).[7] K. Shoghi, S.M. Barrans, P. Ramasamy, Axial load capacity of V-section band clamp joints. 8th International Conference on Turbochargers and Turbocharging, London (2006).[8] S.M. Barrans, M., Muller, Finite element prediction of the ultimate axial load capacity of V-section band clamps. 7th International conference on modern practice in stress and vibration analysis, Cambridge (2009). [9] M. Muller, Predicting the ultimate axial load capacity of the joints formed by using V-section band retainers, University of Huddersfield, PhD (2011). [10] Dassault-Systems, Getting Started with ABAQUS v6.7 Section 4 Using Continuum Elements, (2007).[11] A. Konter, How to undertake a Contact and Friction Analysis., NAFEMS, Glasgow (2000). Simon Barrans 16 Sep 2014 15:05 30 Nov 2016 17:43 http://eprints.hud.ac.uk/id/eprint/21549

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