Strain patterns during tensile, compressive, and shear fatigue of human cortical bone and implications for bone biomechanics
- 30 June 2006
- journal article
- research article
- Published by Wiley in Journal of Biomedical Materials Research Part A
- Vol. 79A (2), 289-297
- https://doi.org/10.1002/jbm.a.30796
Abstract
It is a common theme in basic bone biomechanics and in biomechanical applications that much of the behavior can be determined and is dictated by the level of strain, whether this pertains to bone physiology, bone remodeling, osseoinduction, osseointegration, or the development of damage. The development of damage, demonstrated by stiffness loss measurements, has already been reported in detail in the literature. However, the systematic study of the development of “plastic” (residual) strains, which are associated with the inelastic mechanical behavior of bone tissue, has generally been overlooked. The present study compares the rates at which the elastic (ea) and plastic components (ep) of strain developed during tensile, compressive, and shear fatigue in human cortical bone of six individuals aged between 53 and 79 years. The overall hypothesis of this investigation is that there is a common underlying factor in the damage-related behavior of bone, which may allow us to link together the various aspects of the damage related behavior of bone. The rate of development of plastic strain (Δep/ΔN) and the rate of growth in elastic strain amplitude (Δea/ΔN) are described as a function of the stress (σ), and/or stress normalized by the modulus of elasticity (σ/E). The implications of our findings are discussed with respect to simple models/mechanisms, which may underlie the observed behavior. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res, 2006Keywords
This publication has 26 references indexed in Scilit:
- A fatigue damage model for the cement–bone interfaceJournal of Biomechanics, 2004
- Deformation behaviour and damage accumulation of cortical bone specimens from the equine tibia under cyclic loadingJournal of Biomechanics, 2003
- Visualisation of three‐dimensional microcracks in compact boneJournal of Anatomy, 2000
- Cyclic mechanical property degradation during fatigue loading of cortical boneJournal of Biomechanics, 1996
- Cancellous bone stresses surrounding the femoral component of a hip prosthesis: an elastic-plastic finite element analysisMedical Engineering & Physics, 1995
- Calculating the probability that microcracks initiate resorption spacesJournal of Biomechanics, 1993
- A comparison of the fatigue behavior of human trabecular and cortical bone tissueJournal of Biomechanics, 1992
- Some viscoplastic characteristics of bovine and human cortical boneJournal of Biomechanics, 1988
- Linear relations in biomechanics: the statistics of scaling functionsJournal of Zoology, 1985
- Compact bone fatigue damage—I. Residual strength and stiffnessJournal of Biomechanics, 1977