Bone fracture characterization under mixed-mode I plus II loading using the MMB test

• Type: Article in International Scientific Journal
• Date: 2016

Authors

de Moura, MFSF (Author) FEUP; F. A. M. Pereira (Author) Other; N. Dourado (Author) Other; J. J. L. Morais (Author) Other; Filipe Silva (Author) FEUP; M. I. R. Dias (Author) Other

Journal

Title: Engineering Fracture Mechanics

Vol. 166

Pages: 151-163

ISSN: 0013-7944

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

ISI Web of Science

Scopus - 7 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Mechanical engineering

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-00M-62V

DOI: 10.1016/j.engfracmech.2016.08.011

Abstract (EN): Fracture characterization of bovine cortical bone under mixed-mode I + II loading was performed in this work. With this aim, a miniaturized version of the mixed-mode bending testing setup was constructed. Three different mode ratios were analysed to cover a wide range of mode mixities, thus leading to an appropriate definition of fracture criterion of bovine cortical bone under mixed-mode I + II loading. A suitable data reduction scheme based on crack equivalent concept was used to get the Resistance-curves of the strain energy release rate components. The proposed procedure was validated by means of a mixed-mode I + II cohesive zone model using a bilinear softening law. In general, it was verified that the numerical load-displacement as well as the Resistance-curves are in agreement with the global trend obtained experimentally, thus validating the proposed procedure concerning mixed-mode I + II fracture characterization.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13