FEM simulation of a crack propagation in a round bar under combined tension and torsion fatigue loading

Authors

  • R. Citarella
  • M. Lepore
  • A. Maligno
  • V. Shlyannikov

DOI:

https://doi.org/10.3221/IGF-ESIS.31.11

Keywords:

Surface flaw

Abstract

An edge crack propagation in a steel bar of circular cross-section undergoing multiaxial fatigue loads is simulated by Finite Element Method (FEM). The variation of crack growth behaviour is studied under axial and combined in phase axial+torsional fatigue loading. Results show that the cyclic Mode III loading superimposed on the cyclic Mode I leads to a fatigue life reduction. Numerical calculations are performed using the FEM software ZENCRACK to determine the crack path and fatigue life. The FEM numerical predictions have been compared against corresponding experimental and numerical data, available from literature, getting satisfactory consistency.

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Published

18-12-2014

How to Cite

FEM simulation of a crack propagation in a round bar under combined tension and torsion fatigue loading. (2014). Frattura Ed Integrità Strutturale, 9(31), pages 138-147. https://doi.org/10.3221/IGF-ESIS.31.11