On the applicability of multiaxial high cycle fatigue criteria to metallic materials

¹ Catholic University of Rio de Janeiro, Department of Chemical and Materials Engineering, Rua Marques de São Vicente 225, 22453-901 Rio de Janeiro – RJ, Brazil
² Fluminense Federal University, Department of Civil Engineering, Rua Passo da Patria 156, 24210-240 Niteroi – RJ, Brazil

^* Corresponding author: marcospe@puc-rio.br

Abstract

A comparative study is made of the applicability of critical plane based multiaxial high cycle fatigue models to predicting the fatigue behavior of metallic materials. A number of models, namely Matake, McDiarmid, Carpinteri and Spagnoli, Liu and Mahadevan and Papadopoulos, were applied to fatigue limit states, involving synchronous fully reversed in-phase sinusoidal bend and torsion loading. The results obtained indicated a good predictive capability of the models with an average error index situated approximately between -5,5% and 4,5%. However, this average was limited to less than 3% for the latter three models. Finally, the critical plane orientation, which, for a given material, is characteristic of the proper model, is compared with that of the fracture plane, exclusively determined by the ratio between the shear stress and normal stress amplitudes.