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Author(s): M. F. S. F. de Moura
F. A. M. Pereira
N. Dourado
J. J. L. Morais
M. I. R. Dias
Title: Mixed-mode I+II fracture characterization of bovine bone tissue using the SLB test
Issue Date: 2014-02-06
Abstract: Fracture of bone in vivo generally occurs as a result of multiaxial loaded conditions, which leads tocomplex mixed-mode stress-states involving the combination of tension, compression and shear. As a resultof this the characterization of the mixed-mode crack propagation assumes a high level of importance.In this work we analysed the adequacy of a miniaturized version of the single leg bending test (SLB) tocharacterize the mixed-mode I+II fracture behaviour of young bovine bone tissue. Hence, a new datareduction scheme based on specimen compliance and crack equivalent concept was used to overcome thedifficulties inherent to crack monitoring during its growth. The method was applied to the experimentalresults in order to obtain the Resistance-curves in each mode. It was concluded that the developed versionof SLB test is adequate for mixed-mode fracture characterization of bone, since it permits to obtain acomplete Resistance-curve though revealing an almost constant mode ratio.
Source: XIV Portuguese Conference on Fracture
Document Type: Artigo em Livro de Atas de Conferência Nacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Nacional

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