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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" }