Two-parameter fracture model for cortical bone
Journal Title: Frattura ed Integrità Strutturale - Year 2016, Vol 10, Issue 37
Abstract
The analysis of the bone fracture behaviour is fundamental for prevention, diagnosis and treatment of traumas. In the present paper, an experimental analysis of the fracture behaviour of a bovine femoral cortical bone is carried out, where specimens are extracted from a diaphysis. Fracture toughness is computed by employing a two-parameter fracture model originally proposed for concrete. In order to take into account the possibility of crack deflection (kinked crack) due to osteons orientation, a modified version of such a model is here discussed. The fracture toughness results are then compared with those reported in the literature, related to a femur of an 18-month-old bovine.
Authors and Affiliations
Sabrina Vantadori, Andrea Carpinteri, Giovanni Fortese, Camilla Ronchei, Daniela Scorza, Filippo Berto
Keywords
Related Articles
- EP ID EP90790
- DOI 10.3221/IGF-ESIS.37.28
- Views 49
- Downloads 0
Initiation and growth behavior of very-long microstructurally short fatigue cracks
The present paper describes a novel experimental technique recently presented that allows one to study interactions between the crack and microstructural barriers with an unprecedented level of ease and detail. The...
A numerical study of squeeze-film damping in MEMS-based structures including rarefaction effects
In a variety of MEMS applications, the thin film of fluid responsible of squeeze-film damping results to be rarefied and, thus, not suitable to be modeled though the classical Navier-Stokes equation. The simplest w...
Numerical modelling of reinforced concrete beams with fracture-plastic material
This paper describes the use of models of fracture-plastic materials for reinforced concrete in numerical modelling of beams made from reinforced concrete. The purpose of the paper is to use of a model of concret...
Three-dimensional effects on cracked components under anti-plane loading
The existence of three-dimensional effects at cracks has been known for many years, but understanding has been limited, and for some situations still is. Understanding improved when the existence of corner point...
On the influence of T-Stress on photoelastic analysis under pure mode II loading
According to the classical definition for in-plane modes of crack deformation, the constant stress term T exists only in the presence of mode I. However, recent studies show that this term can exist in mode II cond...