Microextensometry and mechanical behaviour of Haversian cortical bone
DOI:
https://doi.org/10.13052/EJCM.18.93-104Keywords:
cortical bone, microextensometry, finite element, multiscale methodAbstract
It is well known that bone microarchitecture is mainly the result of the bone remodelling process. However, a mechanistic framework describing how the microstructure affects the mechanical behaviour of bone is still lacking. Therefore, tools to quantify bone quality at the microstructure scale are required. To address this problem, the present study focused on the measurements of the local strains over a large microstructure area using microextensometry. First, the relationship between the local strains and the mineral content was examined. Then, the local strains were used to feed an inverse approach performed by finite elements. The results show there is no correlation between the strain and the mineral content. Moreover, the implementation of the mineral content in finite elements simulations gave a better estimate of the experimental strain field.
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