Compressive mechanical properties of bovine cortical bone under varied loading rates
文献类型：会议论文
| 作者 | Yu, B.2; Zhao, G.-F.1; Lim, J.I.3; Lee, Y.-K.1 |
| 出版日期 | 2011-10-01 |
| 关键词 | Biomechanics - Biomimetics - Elasticity - Mammals - Toughness - Bone - Elastic moduli - Biomaterials - Strain rate |
| 卷号 | 225 |
| 期号 | 10 |
| DOI | 10.1177/0954411911415470 |
| 页码 | 941-947 |
| 英文摘要 | Bone tissue functions in varied mechanical systems of the body under static and dynamic conditions. Therefore, it is essential to understand the mechanical responses of bone at varied loading rates, especially those at fast loading rates. This study has investigated the effect of loading rate on the compressive mechanical properties of bovine cortical bone. Bone specimens of 3.85 mm in diameter and 7.7 mm in length were compressed longitudinally with the loading rates of 2 to 2000 mm/s (corresponding strain rates of 0.26 to 260 s -1). As a result, bovine cortical bone showed high linear elasticity when the loading rate was slow, and exhibited three definite regions of linear elasticity, plastic deformation, and densification at faster loading rates. The elastic modulus showed no dependency on the loading rate. Compressive strength, strain at fracture, and toughness increased as the loading rate increased under the condition that the loading rates were slower than each critical loading rate of 1000, 100, and 1500 mm/s, respectively. However, all showed no significant changes when the loading rates were faster than the corresponding critical loading rates. In conclusion, as the loading rate increased, changes in the compressive mechanical parameters were different depending on the parameter and the loading rate range. Compressive mechanical behaviour of bovine cortical bone showed a brittle nature under high strain rates (strain rates > 13 s -1). These findings should be reflected in the biomimetic simulation of biomaterials for bone tissue repair and engineering. 漏 IMechE 2011. |
| 资助机构 | SAGE Publications Ltd |
| 学科主题 | Compressive Strength |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59532]  |
| 作者单位 | 1.Institute for Clinical Performance of Biomaterials (ICPB), 809-1, Tongil-ro, Eunpyung-gu, Seoul 122-842, Korea, Republic of 2.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China 3.Department of Biomedical Engineering, Healthcare Industry Research Institute, Kyung Hee University, Seoul, Korea, Republic of |
| 推荐引用方式 GB/T 7714 | Yu, B.,Zhao, G.-F.,Lim, J.I.,et al. Compressive mechanical properties of bovine cortical bone under varied loading rates[C]. 见:. |
入库方式： OAI收割
来源：过程工程研究所
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