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2D Fracture Analysis of the First Compression Piston Ring

Authors: I. Razmi, N. Choupani


The incidence of mechanical fracture of an automobile piston rings prompted development of fracture analysis method on this case. The three rings (two compression rings and one oil ring) were smashed into several parts during the power-test (after manufacturing the engine) causing piston and liner to be damaged. The radial and oblique cracking happened on the failed piston rings. The aim of the fracture mechanics simulations presented in this paper was the calculation of particular effective fracture mechanics parameters, such as J-integrals and stress intensity factors. Crack propagation angles were calculated as well. Two-dimensional fracture analysis of the first compression ring has been developed in this paper using ABAQUS CAE6.5-1 software. Moreover, SEM fractography was developed on fracture surfaces and is discussed in this paper. Results of numerical calculations constitute the basis for further research on real object.

Keywords: Compression piston ring, Crack, Fracture mechanics, SEM fractography.

Digital Object Identifier (DOI):

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[1] S.T. Gazzard, D.R. Eastham, R.J. Jakobs, and R.L. Lunsford, "Piston system design for low emissions, Leading through Innovation", T&N Symposium, 1995, Paper 20.
[2] M. Priest, D. Dowson, and C.M. Taylor, "Predictive wear modeling of lubricated piston rings in a diesel engine", Wear 231, 1999, pp. 89-101.
[3] ABAQUS/Standard Theory Manual
[4] T.L. Anderson, Fracture mechanics-Fundamentals and applications. 2nd ed., CRC Press LLC, 1995, pp. 109-115.
[5] A. Kolchin, and V. Demidov, Design of automotive engines, Moscow, Mir Publishers, 1984, pp. 234-238.
[6] A. Kazmierczak, "Computer simulation of piston-piston ring-cylinder liner coactions in combustion engines", Proceedings of the Institution of Mechanical Engineers, 2004, pp. 1491-1501