Determination of mode II cohesive law of bovine cortical bone using direct and inverse methods

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Marcelo F. S. F. de Moura (Author) FEUP; F. A. M. Pereira (Author) Other; N. Dourado (Author) Other; J. J. L. Morais (Author) Other; J. Xavier (Author) Other; M. I. R. Dias (Author) Other

Journal

Title: International Journal of Mechanical Sciences

Vol. 138

Pages: 448-456

ISSN: 0020-7403

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 2 Citations

ISI Web of Science

Scopus - 7 Citations

INSPEC

Scientific classification

CORDIS: Technological sciences > Engineering > Mechanical engineering

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-00N-MX6

DOI: 10.1016/j.ijmecsci.2018.02.009

Abstract (EN): This study presents two alternative methods to determine the cohesive law of bovine cortical bone under mode II loading, employing the End Notched Flexure (ENF) test. The direct method results from the combination of the progress of the mode II strain energy release rate with the crack tip shear displacement, obtained by digital image correlation. The resulting cohesive law is determined by differentiation of this relation relatively to the crack shear displacement. The inverse method employs finite element analyses with cohesive zone modelling, in association with an optimization procedure. The resulting strategy enables determining the cohesive law without establishing a pre-defined shape. The significant conclusion that comes out of this work is that both methods offer consistent results regarding the estimation of the cohesive law in bone. Given that the inverse method dispenses the use of sophisticated equipment to obtain the cohesive law in bone, it can be used as a more convenient procedure to accomplish efficient studies in the context of bone fracture characterization under mode II loading. (C) 2018 Published by Elsevier Ltd.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9