Publication detail

Reconstruction and Evaluation of 3D Fracture Surface Morphology

SLÁMEČKA, K. POKLUDA, J. PONÍŽIL, P. ŠANDERA, P.

Original Title

Reconstruction and Evaluation of 3D Fracture Surface Morphology

Type

conference paper

Language

English

Original Abstract

In the paper a procedure for evaluation of the fracture surface morphology is described in detail. It consists of the stereophotogrammetrical 3D surface reconstruction followed by the Delaunay triangulation of obtained set of surface points. The potential of the procedure is demonstrated using fracture surfaces generated under combined bending-torsion fatigue loading of specimens made from highstrength low-alloy Cr-Al-Mo steel. Fracture profiles extracted from calculated 3D meshes are characterized by the root mean square roughness and the Hurst exponent. As a main result of the analysis the critical portion of the torsion loading component after which the character of the crack path changes rapidly is estimated to be approximately 50%.

Keywords

Fatigue fracture morphology, high-strength steel, bending-torsion fatigue.

Authors

SLÁMEČKA, K.; POKLUDA, J.; PONÍŽIL, P.; ŠANDERA, P.

RIV year

2007

Released

17. 1. 2007

ISBN

0-9717880-3-0

Book

Advances in Computational & Experimental Engineering and Sciences

Pages from

1507

Pages to

1513

Pages count

7

BibTex

@inproceedings{BUT27922,
  author="Karel {Slámečka} and Jaroslav {Pokluda} and Petr {Ponížil} and Pavel {Šandera}",
  title="Reconstruction and Evaluation of 3D Fracture Surface Morphology",
  booktitle="Advances in Computational & Experimental Engineering and Sciences",
  year="2007",
  pages="1507--1513",
  isbn="0-9717880-3-0"
}