Author(s)

S. Braham & J. Frelat

Abstract

Modelling of crankshaft roller burnishing S. Braham," J. FreW * Laboratoire de Mecanique des Solides, Ecole Poly technique, 91128 Palaiseau Cedex, France Gaulle, 92000 Clamart, France ABSTRACT Roller burnishing is a surface treatment inducing compressive residual stresses with a view to enhancing endurance. A cyclic elastoplastic contact problem is thus raised, for which a model based on Simplified Analysis of Inelastic Structures is proposed, ena- bling fast determination of the residual stresses induced at minimum cost. Model res- ults are compared with experimental data and results obtained by another numerical method. A parametric study has been undertaken to determine the incidence of certain of the parameters involved in the process. INTRODUCTION The crankshaft is a major component of an engine, by means of which the to- and- fro motion of a coupler is transformed in rotary motion. This process involves intensive service loads, particularly concentrated in linkage are

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