On Simple Model of Self-Adapting Bone Material

Two basic trends in modeling of adaptation properties of bones can be distinguished. The first one based on the theory of adaptive elasticity makes use of appropriate constitutive relations reflecting the ability of the material, and the bone structure to change their mechanical and geometrical characteristics due to the actual loading conditions. In the second approach, that in recent years attracts many researchers, an assumption is made that the bone represents some optimal structure. The optimization methods can be used to determine the optimal shape of the bones and material distribution. This approach in fact does not enable truth modeling of the adaptation process because it provides only the optimal solution while the real adaptive systems are not optimal - they have a tendency to approach the optimal configuration but can never meet it.