• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Materials Engineering and Science >Temperature Effects on Creep Behaviour of Bovine Cortical Bones
【24h】

Temperature Effects on Creep Behaviour of Bovine Cortical Bones

机译：对牛皮质骨骼蠕变行为的温度效应

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A widely acknowledged fact is that viscoelastic behavior exhibited in cortical bone that influences the biomechanical reaction when an external load applied to an implant. Moreover, the successful operation of an implement can be easily affected by long term load, i. e., relaxation, creep, and remodelling. In the current study, the design and manufacture of creep equipment is complied with ASTM D2990, and an apparatus is specially designed for creep tests and test samples were taken from femur bovine cortical bones of animals with 24 month age. The current work states the viscoelastic behavior of bone which is simulated theoretically, using Burgers rheological model. The behavior of bone is demonstrated by the model and its parameters when it is subjected to longitudinal loading. Additionally, the simulations with the model excellent show agreement among all experimental and theoretical results reaching up to (99.11% - 100%). The results and their diagrams for each stress were recorded and drawn separately. The influence of different temperature has been studied on the behavior of creep for bovine femur samples, the samples were examined for 1800 seconds under the influence of three degrees of stress (25, 50, and 65) MPa respectively. Each stress was examined with different temperatures of (29, 35, 40, and 50°C), due to the fact that such degrees are the average climate temperatures. The results shows that the temperature effects on creep behavior of bovine cortical bones, with the increase of temperature the initial strain was increase(from 0.032% to 0.11%), the duration of the first stage of creep curve is decrease and the creep strain rate was increased (from 1.88 fxe/sec to 8.05 us/sec).
机译：广泛认可的事实是，在皮质骨中表现出的粘弹性行为，当施加到植入物的外部载荷时，会影响生物力学反应。此外，通过长期负载，I的成功操作可以很容易地影响我。即放松，蠕变和重塑。在目前的研究中，蠕变设备的设计和制造符合ASTM D2990，专门设计用于蠕变试验的装置，并从24个月年龄的动物的股骨牛皮质骨头中取出测试样品。目前的工作指出，从理论上模拟骨的粘弹性行为，使用汉堡流变模型模拟。模型及其参数对骨骼进行纵向负载时的参数证明了骨骼的行为。此外，所有实验和理论结果中的模型出色的仿真优异展示均达到（99.11％ - 100％）。将每个应力的结果及其图分别记录和绘制。已经研究了不同温度的影响对牛股骨样品的蠕变行为，在三个应力（25,50和65）MPa的影响下，检查样品1800秒。由于这种程度是平均气候温度的事实，通过（29,35,40和50℃）的不同温度检查每个压力。结果表明，牛皮制骨蠕变行为的温度效应随着初始菌株的增加而增加（从0.032％至0.11％），蠕变曲线的第一阶段的持续时间降低，蠕变应变速率增加（从1.88 fxe / sec到8.05 US / SEC）。

著录项

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