骨折予知に関する基礎的研究 : 第1報, AE による予知

概要

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Acoustic Emission (AE) technique have been used to detect cracks and flaws in jet planes, bridges and other structures which consist of metals, polymers, ceramics and composite materials. The sounds from the bones are called also acoustic emissions which are characteristic noises given off by materials when they are deformed beyond their elastic limits. In this preliminary investigation, the formation of microcracks in the third metacarpal bones of horses under compressive, bending and torsional loads was studied. AE signals, characteristic for microcrack formation and/or growth in osteons and Haversian systems of bone were recorded exclusively during the non-linear deformation of bone. AE method can detect smaller bone fracture than ever before and tell more precisely when a bone injury is healed by listening to the bone rather than looking at it with X ray and other medical imaging method.
一般社団法人日本機械学会の論文
1985-05-25