Experimental evaluation of cohesive laws components of mixed-mode I + II fracture characterization of cortical bone

Mixed-mode I + II fracture characterization of cortical bone tissue is addressed in this work. The mixed-mode bending test was used to impose different mode ratios. An equivalent crack length data reduction method considered obtain the strain energy release rate components. Crack opening and shear displacements were measured by means digital image correlation. These quantities then integrated propose a direct evaluation cohesive laws. components laws for each loading obtained uncoupled Högberg’s methods. later provided consistent evolution peak stresses function mode-ratio, revealing its appropriateness regarding under loading.