Abstract：
:Throughout life, bone is continuously turning over by the well-regulated processes of bone formation and resorption. Everyday activities damage bone, and this damage is normally repaired in a continuous remodelling process. When an imbalance in this remodelling process occurs, bones may become more susceptible to fracture. This paper is devoted to a theoretical modelling of the competition between damage and internal remodelling in bones. The general theory of adaptive damaged-elastic materials proposed here as a model for the physiological process of damaged-bone remodelling follows the general framework of continuum thermodynamics where new damaged-bone remodelling law and associated thermodynamical restrictions are stated, and specialized to the case of small strain in isothermal processes. An attempt is also made to derive: (a) the damage force (adaptive damage energy release rate ) which controls the microcracks propagation and arrest, and (b) the damage rule by introducing damage thresholds and loading/unloading conditions.
journal_name
J Biomechjournal_title
Journal of biomechanicsauthors
Ramtani S,Zidi Mdoi
10.1016/s0021-9290(00)00215-3keywords:
subject
Has Abstractpub_date
2001-04-01 00:00:00pages
471-9issue
4eissn
0021-9290issn
1873-2380pii
S0021929000002153journal_volume
34pub_type
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