Publication detail

Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.

VOJTEK, T. POKLUDA, J. HOHENWARTER, A. PIPPAN, R.

Original Title

Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.

English Title

Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.

Type

journal article in Web of Science

Language

en

Original Abstract

This work is focused on an experimental study of shear-mode crack propagation in the ARMCO iron and the X5CrNi18-10 austenitic steel near the crack-growth threshold. Three experimental setups are used for a generation of cracks in simple-shear, compact tension-shear and torsion specimens. The crack path and the surface topography are studied by means of 3-dimensional reconstruction of fracture surfaces using stereophotogrammetry in a scanning electron microscope. Measurements by means of the profile analysis are used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. The tendency to mode I crack branching is found to be much higher in austenite than in ferrite where both mode II and III cracks propagate close to the plane of maximal shear stress.

English abstract

This work is focused on an experimental study of shear-mode crack propagation in the ARMCO iron and the X5CrNi18-10 austenitic steel near the crack-growth threshold. Three experimental setups are used for a generation of cracks in simple-shear, compact tension-shear and torsion specimens. The crack path and the surface topography are studied by means of 3-dimensional reconstruction of fracture surfaces using stereophotogrammetry in a scanning electron microscope. Measurements by means of the profile analysis are used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. The tendency to mode I crack branching is found to be much higher in austenite than in ferrite where both mode II and III cracks propagate close to the plane of maximal shear stress.

Keywords

fracture morphology, stereophotogrammetry, shear-mode fatigue cracks, mode I branching, ferrite, austenite

RIV year

2013

Released

01.08.2013

Publisher

Elsevier

ISBN

0013-7944

Periodical

Engineering Fracture Mechanics

Year of study

108

Number

1

State

GB

Pages from

285

Pages to

293

Pages count

9

Documents

BibTex


@article{BUT96338,
  author="Tomáš {Vojtek} and Jaroslav {Pokluda} and Anton {Hohenwarter} and Reinhard {Pippan}",
  title="Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.",
  annote="This work is focused on an experimental study of shear-mode crack propagation in the ARMCO iron and the X5CrNi18-10 austenitic steel near the crack-growth threshold. Three experimental setups are used for a generation of cracks in simple-shear, compact tension-shear and torsion specimens. The crack path and the surface topography are studied by means of 3-dimensional reconstruction of fracture surfaces using stereophotogrammetry in a scanning electron microscope. Measurements by means of the profile analysis are used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. The tendency to mode I crack branching is found to be much higher in austenite than in ferrite where both mode II and III cracks propagate close to the plane of maximal shear stress.",
  address="Elsevier",
  chapter="96338",
  doi="10.1016/j.engfracmech.2013.02.022",
  institution="Elsevier",
  number="1",
  volume="108",
  year="2013",
  month="august",
  pages="285--293",
  publisher="Elsevier",
  type="journal article in Web of Science"
}