UM ESTUDO SOBRE O COMPORTAMENTO MECÂNICO DE TECIDOS TENDINO- SOS VIA ABORDAGEM DE HOMOGENEIZAÇÃO COMPUTACIONAL

Resumo

The present manuscript provides a numerical investigation on the multiscale behavior of ten-
don tissues employing a computational homogenization approach. The numerical approach used is for-
mulated considering a variational framework, finite kinematics and based on the concept of representative

volume element (RVE) of the material. Since tensile tests are broadly applied to assess the mechanical
responses of tendons, a proper multiscale boundary condition is used aiming to recover the mechanical
states obtained by such experimental tests. The macroscopic results (homogenized quantities) and the
microscopic ones (stress and strain fields of the RVE) are retrieved from a three-dimensional RVE of
a tendon fascicle designed based on experimental observation. The following aspects are investigated:
evolution of the macroscopic volume of the tissue under physiological strains; microscopic kinematic
fields; strain localization in the cells.