Chang, D.Harding, S.2011-06-282011-06-282010Proceedings of the 6th Australasian Congress on Applied Mechanics, ACAM 6, held in Perth, Western Australia 12-15 December 2010 / K. Teh, I. Davies and I. Howard (eds.): pp.1-6http://hdl.handle.net/2440/64888A cylindrical butt joint is widely utilised in bi-materials structures. Numerous examples can be found in micro-electronics, medicine and composite areas. Such bi-material structures normally have a very strong stress concentration at the interface, which often characterised by linear solutions of the theory of elasticity leading to the appearance of stress singularities. These singular solutions play a very important role in failure assessment of such joints by fracture mechanics approaches. In this paper we develop a compact solution for the generalized stress intensity factor at the interface of a cylindrical bi-material joint loaded by remote tensile loading parallel to the axis of symmetry. Based on a careful numerical modelling, a simple equation maintaining simplicity and accuracy over the wide range of problem’s variables is suggested. Furthermore, the existence of scale effect on the interface corner stress intensity factor for a cylindrical butt joint structure is also discussed in detail.enCopyright status unknownbi-materialcompact solutioncylindrical butt jointfracture mechanicsfinite element modellingstress intensity factorstress singularityConference paper002010763830122