Detection of Defects in the Human Skeletalsystem and Production of Failure Optimized Artificial Bone Applying Acoustic Emission Analysis (AEA)

摘要

Acoustic Emission Analysis using resonant sensors was applied to diagnose human knee joints. Broadband sensitive sensors were examined whether they offer the same diagnostic accuracy. It is of key importance to know the cracking threshold in the human femoral bone especially in cases of disease and of healing bone after bone fracture. Cracking threshold and fracture kinetics were assessed in donated human bones. Bone explants are not available in arbitrary numbers and each bone is individually equipped with respect to geometrical structure and material behaviour. That is why there is such a great need for artificial bone. Exploiting acoustic emission analysis, new artificial bones are under development which resemble natural bones with respect to shape, structure and fracture kinetics.