TY  - EJOU
AU  - Slámečka, K. 
AU  - J.Pokluda, 
AU  - Ponížil, P. 
AU  - Šandera, P. 

TI  - Reconstruction and Evaluation of 3D Fracture Surface Morphology
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2007
VL  - 1
IS  - 4
SN  - 1933-2815

AB  - 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 high-strength 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%.
KW  - 

DO  - 10.3970/icces.2007.001.153