Cortical bone tensile modulus

The stress-strain curves for cortical bones at various strain rates are shown in Figure 5.130. The mechanical behavior is as expected from a composite of linear elastic ceramic reinforcement (HA) and a compliant, ductile polymer matrix (collagen). In fact, the tensile modulus values for bone can be modeled to within a factor of two by a rule-of-mixtures calculation on the basis of a 0.5 volume fraction HA-reinforced... 

FIGURE 8.6 (a) Dependence of the ultimate tensile stress of human coitical bone on volume fraction (expressed as a percentage). Ages of the specimens were in the range 20 to 100 years. From Ref. 10.) b) Modulus versus calcium content (in mg/gm of dehydrated bone tissue) for cortical bone taken from 18 different species. From Ref 24.)... 

The Young s modulus and the tensile strength of injection-moulded PEEK/HAp composites were reported to be in the range of 3-10 GPa and 40-90 MPa, respectively [106]. These results indicate that the mechanical properties of PEEK/HAp composites are in the region of cortical bone, making them a potential candidate for... 

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