Publication detail

Stress Intensity Factors for Surface Semi-elliptical Crack in Cylindrical Specimen under Combined Torsion and Axial Compression

HORNÍKOVÁ, J. ŠANDERA, P. POKLUDA, J.

English title

Stress Intensity Factors for Surface Semi-elliptical Crack in Cylindrical Specimen under Combined Torsion and Axial Compression

Type

WoS Article

Language

en

Original abstract

Some authors proposed to combine a torsional loading of cylindrical specimens with surface semi-elliptical cracks (the principal axes along the axial direction) with superimposed static axial compression in order to eliminate kinking or branching of shear cracks from the shear plane. To authors knowledge, however, no precise numerical analysis of such a loading configuration is currently available. The aim of this article is to calculate stress intensity factors KI, KII and KIII along the semi-elliptical crack front using the ANSYS code. The problem is solved for a semi-circular crack front and various crack inclination angles. The results reveal that the compressive loading cannot eliminate the branching process. The inclination of the crack plane induces a rather high opening mode which means that the microscopically tortuous fatigue cracks observed in experiments grew under mixed-mode I+II+III.

Keywords in English

combined torsion-compression, mixed-mode loading, stress intensity factors

Released

2011-01-03

ISSN

1013-9826

Journal

Key Engineering Materials (print)

Volume

452-453

Number

1

Pages from–to

673–676

Pages count

4

BIBTEX


@article{BUT72820,
  author="Jana {Horníková} and Pavel {Šandera} and Jaroslav {Pokluda}",
  title="Stress Intensity Factors for Surface Semi-elliptical Crack in Cylindrical Specimen under Combined Torsion and Axial Compression",
  journal="Key Engineering Materials (print)",
  year="2011",
  volume="452-453",
  number="1",
  pages="673--676",
  issn="1013-9826"
}