Multiaxial Fatigue Evaluation of ST52-3N Structural Steel


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Many mechanical components are subjected to multiaxial fatigue. These conditions are typically coming from external loads, the geometry of the component and/or residual stresses. However the majority of experimental data available in the literature are focused on the simpler uni-axial fatigue problem. The present work describes a series of experimental tests conducted to characterise in a comprehensive way the multiaxial behaviour of a ST52-3N structural steel. First, the monotonic properties of the steel were obtained experimentally. Then cyclic properties were also measured both in the longitudinal and torsional axes. Finally another series of tests were carried out to study the multiaxial response of the material. Both in-phase (proportional) and out-of-phase (non proportional) loadings were employed, thus providing a complete database for improving current models which describe the multiaxial behaviour of materials.



Key Engineering Materials (Volumes 452-453)

Edited by:

A. Saimoto and M.H. Aliabadi




B. Moreno et al., "Multiaxial Fatigue Evaluation of ST52-3N Structural Steel", Key Engineering Materials, Vols. 452-453, pp. 41-44, 2011

Online since:

November 2010




[1] ASTM E739 Standard practice for statistical analysis of linear or linearized stress-life (S-N) and strain-life (e-N) fatigue data. (1991).

[2] Socie DF, Marquis GB. Multiaxial Fatigue. Warrendale, PA (USA): Society of Automotive Engineers, Inc., (2000).