## Abstract We have previously shown, using Dynamic Mechanical Analysis (DMA), that the presence of a defect in cortical bone tissue affects the apparent viscoelastic properties of that bone. However, mechanically induced damage is more complex than a machined defect making it difficult to predict
The acoustic properties of normal and imbedded bovine bone as measured by acoustic microscopy
โ Scribed by Zimmerman, Mark C. ;Prabhakar, Avinash ;Chokshi, Biren V. ;Budhwani, Navin ;Berndt, Hubert
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 890 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0021-9304
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โฆ Synopsis
Abstract
The acoustic impedance of bovine femoral cortical bone was measured with a scanning acoustic microscope used in the reflection mode. The bone was measured in the unimbeded state and after plastic imbedding. The acoustic impedance of the unimbedded specimens was also measured with a standard transmission ultrasonic technique. For the unimbedded bovine specimens there was a good correlation between the bulk transmission impedance and the reflection surface impedance (r^2^ = 0.976) and the values were 9.32 and 9.29 MRayls, respectively. Plastic imbedding produced a consistent and statistically significant increase in the acoustic impedance of the bone (9.71 MRayls). This experiment verified the use of acoustic microscopy as a quantitative materials analysis technique and it demonstrated the potential for material property analysis of imbedded bone. ยฉ 1994 John Wiley & Sons, Inc.
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