Strain distribution analysis of braided composite bone plates

Abstract Bone plates made of braided composites have low elastic modulus compared to conventional metal bone plates. This low elastic modulus of ensures only a part of load is transferred through bone plate and the remaining load is borne by the bone itself, thus creating a small movement at fracture. The movement induced by external loading gives stimulus to the damaged bone tissue and encourages callus formation. It is necessary to calculate magnitudes of strains induced in bone plate system subjected to loading. The results from stress–strain curves of the composite indicate that at 1% strain, there is no danger of fibre and matrix separation. The suitability of a braided carbon–epoxy composite for bone plate application is studied.