• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Computer methods in biomechanics and biomedical engineering >Micro-mechanical properties of different sites on woodpecker's skull
【24h】

Micro-mechanical properties of different sites on woodpecker's skull

机译：啄木鸟头骨上不同部位的微机械性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The uneven distributed microstructure featured with plate-like spongy bone in woodpecker's skull has been found to further help reduce the impact during woodpecker's pecking behavior. Therefore, this work was to investigate the micro-mechanical properties and composition on different sites of Great Spotted woodpecker's (GSW) skull. Different sites were selected on forehead, tempus and occiput, which were also compared with those of Eurasian Hoopoe (EH) and Lark birds (LB). Micro structural parameters assessed from micro computed tomography (mu CT) occurred significantly difference between GSW, EH and LB. The micro finite element (micro-FE) models were developed and the simulation was performed as a compression process. The maximal stresses of GSW's micro-FE models were all lower than those of EH and LB respectively and few concentrated stresses were noticed on GSW's trabecular bone. Fourier transform infrared mapping suggesting a greater organic content in the occiput of GSW's cranial bone compared with others. The nano-hardness of the GSW's occiput was decreasing from forehead to occiput. The mechanical properties, site-dependent hardness distribution and special material composition of GSW's skull bone are newly found in this study. These factors may lead to a new design of bulk material mimicking these characteristics.
机译：发现啄木鸟头骨中的板状海绵状骨具有不均匀分布的微观结构，可以进一步帮助减少啄木鸟啄食行为的影响。因此，这项工作是为了研究大斑啄木鸟（GSW）头骨不同部位的微机械性能和组成。在额头，颞骨和枕骨上选择了不同的部位，并与欧亚戴胜（EH）和百灵鸟（LB）进行了比较。通过微计算机断层扫描（μCT）评估的微结构参数在GSW，EH和LB之间出现显着差异。开发了微有限元（micro-FE）模型，并将模拟作为压缩过程进行。 GSW的micro-FE模型的最大应力分别低于EH和LB的最大应力，并且在GSW的小梁骨上几乎观察不到集中应力。傅立叶变换红外图谱表明，与其他相比，GSW颅骨枕骨的有机物含量更高。 GSW枕骨的纳米硬度从前额到枕骨逐渐降低。在这项研究中新发现了GSW头骨的机械性能，随位置变化的硬度分布和特殊的材料成分。这些因素可能导致模仿这些特性的新的散装材料设计。

著录项

  • 来源
  • 作者

    Ni Yikun; Wang Lizhen; Liu Xiaoyu; Zhang Hongquan; Lin Chia-Ying; Fan Yubo;

  • 作者单位

    Beihang Univ, Key Lab Biomech & Mechanobiol, Minist Educ, Sch Biol Sci & Med Engn, Beijing, Peoples R China|Univ Cincinnati, Dept Biomed Chem & Environm Engn, Cincinnati, OH USA;

    Beihang Univ, Key Lab Biomech & Mechanobiol, Minist Educ, Sch Biol Sci & Med Engn, Beijing, Peoples R China;

    Beihang Univ, Key Lab Biomech & Mechanobiol, Minist Educ, Sch Biol Sci & Med Engn, Beijing, Peoples R China;

    Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan, Hubei, Peoples R China;

    Beihang Univ, Key Lab Biomech & Mechanobiol, Minist Educ, Sch Biol Sci & Med Engn, Beijing, Peoples R China|Univ Cincinnati, Dept Biomed Chem & Environm Engn, Cincinnati, OH USA|Univ Cincinnati, Dept Orthopaed Surg, Cincinnati, OH USA|Univ Cincinnati, Dept Neurosurg, Cincinnati, OH USA;

    Beihang Univ, Key Lab Biomech & Mechanobiol, Minist Educ, Sch Biol Sci & Med Engn, Beijing, Peoples R China|Natl Res Ctr Rehabil Tech Aids, Beijing, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Woodpecker; cranial bone; micro-mechanical property; micro-finite element analysis;

    机译：啄木鸟;颅骨;微力学性能;微有限元分析;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号