Publication detail

Quantitative Fractography in Bending-Torsion Fatigue

SLÁMEČKA, K. PONÍŽIL, P. POKLUDA, J.

Czech title

Quantitative Fractography in Bending-Torsion Fatigue

English title

Quantitative Fractography in Bending-Torsion Fatigue

Type

journal article - other

Language

en

Original abstract

The paper deals with a quantitative analysis of fracture surface roughness generated under combined bending-torsion fatigue in a high-strength low-alloy steel. Changes in several amplitude, spectral and hybrid profile roughness parameters are investigated for sets of profiles parallel and perpendicular to the local crack propagation direction in dependence on the loading ratio. Profile fractal dimension is also calculated as a scale-independent-characteristic. Most of profile roughness parameters start to rapidly increase above the critical value rc .0.5 of the loading ratio r.

Czech abstract

The paper deals with a quantitative analysis of fracture surface roughness generated under combined bending-torsion fatigue in a high-strength low-alloy steel. Changes in several amplitude, spectral and hybrid profile roughness parameters are investigated for sets of profiles parallel and perpendicular to the local crack propagation direction in dependence on the loading ratio. Profile fractal dimension is also calculated as a scale-independent-characteristic. Most of profile roughness parameters start to rapidly increase above the critical value rc .0.5 of the loading ratio r.

English abstract

The paper deals with a quantitative analysis of fracture surface roughness generated under combined bending-torsion fatigue in a high-strength low-alloy steel. Changes in several amplitude, spectral and hybrid profile roughness parameters are investigated for sets of profiles parallel and perpendicular to the local crack propagation direction in dependence on the loading ratio. Profile fractal dimension is also calculated as a scale-independent-characteristic. Most of profile roughness parameters start to rapidly increase above the critical value rc .0.5 of the loading ratio r.

Keywords in Czech

Quantitative fractography; Roughness; Biaxial fatigue; Fractal dimension

Keywords in English

Quantitative fractography; Roughness; Biaxial fatigue; Fractal dimension

RIV year

2007

Released

01.09.2007

ISSN

0921-5093

Journal

Materials Science and Engineering A

Volume

462

Number

2

Pages from–to

359–362

Pages count

4

BIBTEX


@article{BUT44479,
  author="Karel {Slámečka} and Petr {Ponížil} and Jaroslav {Pokluda},
  title="Quantitative Fractography in Bending-Torsion Fatigue",
  journal="Materials Science and Engineering A",
  year="2007",
  volume="462",
  number="2",
  month="September",
  pages="359--362",
  issn="0921-5093"
}