Horovistiz, Ana Lucia
de Campos, Kamila Amato
Prado, Camila C. S.
de Oliveira Hein, Luis Rogerio
Total Authors: 5
 IPEN CNEN SP, BR-05508000 Sao Paulo - Brazil
 UNESP, Fac Engn Guaratingueta, Dept Mat & Tecnol, BR-12516410 Guaratingueta, SP - Brazil
Total Affiliations: 2
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING;
JUL 15 2010.
Web of Science Citations:
The self-affine behavior of Brazilian disk test titanium oxide specimens for K(Ic) measurement was investigated from 3D elevation maps obtained at regular intervals following crack extension. The bifractal approach could be adopted due to the self-affine characteristics of crack propagation under linear elastic regime, determining fractal dimensions associated to micro- (D(T)) and macro- (D(S)) resolution scales. It was found that fractal dimension data were dependent on crack front positions, and could not be related to fracture toughness. (C) 2010 Elsevier B.V. All rights reserved. (AU)