| 股骨上端松质骨拉伸应力松弛及蠕变的实验研究 |
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| 引用本文： | 朴成东,齐菲,马洪顺.股骨上端松质骨拉伸应力松弛及蠕变的实验研究[J].医用生物力学,2005,20(3):152-155. |
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| 作者姓名： | 朴成东 齐菲 马洪顺 |
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| 作者单位： | 吉林大学第二医院;吉林大学第三医院;吉林大学南岭校区工程力学系 |
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| 摘 要： | 目的研究正常国人新鲜尸体股骨上端松质骨的拉伸粘弹性力学性质,为临床提供生物力学参数。方法对股上端松质骨试样纵向进行拉伸应力松弛及蠕变实验。得到股骨上端松质骨纵向的应力松弛及蠕变数据和曲线。对实验数据进行归一化处理。结果分别用对数、指数一元回归分析的方法处理数据,得出了归一化应力松弛、归一化蠕变函数及曲线。结论股骨上端松质骨拉伸应力松弛7200s应力松弛量为0.422MPa,7200s蠕变量为0.784%。
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| 关 键 词： | 股骨上端松质骨 粘弹性 拉伸应力松弛实验 拉伸蠕变实验 |
| 文章编号： | 1004-7220（2005）03-0149-04 |
| 收稿时间： | 2005-03-25 |
| 修稿时间： | 2005-06-13 |
Experiment study on the extending stress relaxation and creep of the cancellous bone of the OS femoris' upper part |
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| PIAO Cheng-dong, QI Fei, MA Hong-shun..Experiment study on the extending stress relaxation and creep of the cancellous bone of the OS femoris'' upper part[J].Journal of Medical Biomechanics,2005,20(3):152-155. |
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| Authors: | PIAO Cheng-dong QI Fei MA Hong-shun |
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| Institution: | 1. The Second Hospital of Jilin University, Changchun 130041, China; 2, The Third Hospital of Jilin University, Changchun 130031, China; 3. Department of Biomechcnics, Nanling District of Jiliu University, Changchun 130022, China |
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| Abstract: | Objective To research the viscoelasticity of the cancellous bones of the OS femoris' upper part of the fresh body of our country and provide parameter of biomass for clinical. Methods The experiment on the extending stress relaxation and creep in directions of vertical vertical. Results By using logarithmic and exponential regression analysis method we obtained the reduced stress relaxation and creep curves. Conclusions The extending stress relaxation grade of the cancellous bones of the OS femoris' upper part is 7 200 s, relaxation is 0.422 MPa, the quantities of creep is 0.784%. |
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| Keywords: | Cancellous bones of OS femoris' upper part Viscoelasticity Experiment of extending stress relaxation Experiment of extruding creep |
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