Bone fracture characterization using the end notched flexure test

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Dourado, N (Author) Other; Pereira, FAM (Author) Other; de Moura, MFSF (Author) FEUP; Morais, JJL (Author) Other; Dias, MIR (Author) Other

Journal

Title: Materials Science and Engineering C

Vol. 33

Pages: 405-410

ISSN: 0928-4931

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 8 Citations

ISI Web of Science

Scopus - 11 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-002-1XX

DOI: 10.1016/j.msec.2012.09.006

Abstract (EN): A miniaturized version of the end notch flexure test was used in the context of pure mode II fracture characterization of bovine cortical bone. To overcome the difficulties intrinsic to crack length monitoring during its propagation an equivalent crack method was employed as data reduction scheme. The proposed method was validated numerically by means of a finite element analysis including a cohesive zone modeling and subsequently applied to experimental results to determine the fracture energy of bone under pure mode II loading. Finally, a cohesive law representative of fracture behavior of each specimen was determined employing an inverse method, considering a trapezoidal shape for the softening law. The consistency of the obtained results leads to the conclusion that the trapezoidal law is adequate to simulate fracture behavior of bone under mode II loading. The proposed testing setup and the employed data reduction scheme constitute powerful tools in which concerns fracture characterization of bone under pure mode II loading and can be viewed as the main outcomes of this work.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6