Comportamiento mecánico del tejido óseo cortical bajo condiciones de tensión y de compresión cíclica.

This research aims to experimentally study the mechanical response of cortical bone tissue under cyclic tensile and cyclic compression loading conditions. Thus, experimental specimens were built from bovine femurs which were subjected to low cycle stresses at post-yield at different loading rates. The results reveal that the speed of degradation of the elastic modulus is inversely proportional to the deformation rate for tension cases and directly proportional to the deformation rate for compression ones. Plastic strains start at total strain levels above 0,35% and 1,09% for the tension and compression loaded samples, respectively. Important mathematical expressions were obtained which help to estimate with good approximation the instantaneous elastic modulus, the total applied deformation, and the total plastic deformation energy. [ABSTRACT FROM AUTHOR]