| 垂直载荷对哈氏棒中应力影响的光弹性分析 |
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| 引用本文： | 罗卓荆,张西正.垂直载荷对哈氏棒中应力影响的光弹性分析[J].生物医学工程学杂志,1994,11(2):122-124. |
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| 作者姓名： | 罗卓荆 张西正 |
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| 作者单位： | 第四军医大学唐都医院矫形外科!西安710038(罗卓荆，沈根标，阮狄克，崔海相，孙宏慧)，西安矿业学院基础部材料力学教研室(张西正)，西安矿业学院基础部材料(邹长春) |
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| 摘 要： | 本文用二维光弹性方法研究了垂直载荷对哈氏棒应力分布的影响。发现在垂直载荷作用下棒的棘齿区呈现高应力集中，棘齿区应力高于光滑区，棘齿区应力值受垂直载荷影响最大，棒的前侧各点应力与垂直载荷呈线性相关。当增加水平载荷作用后，哈氏棒应力分布发生变化。
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| 关 键 词： | 哈氏棒 光弹性 垂直载荷 应力 |
The Influence of Vertical Loads upon the Stress of Harrington Distraction Rod by Photoelastricity |
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| Luo Zhuojing,Shen Genbiao,Ruan Dike Chui Haixiang,Shun Honghui.The Influence of Vertical Loads upon the Stress of Harrington Distraction Rod by Photoelastricity[J].Journal of Biomedical Engineering,1994,11(2):122-124. |
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| Authors: | Luo Zhuojing Shen Genbiao Ruan Dike Chui Haixiang Shun Honghui |
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| Abstract: | The influence of vertical loads upon the sttresses of HDR was studied with photoelastri-city. Experiments showed; the stresses of HDR were in direct proportion to vertical loads; the stresses on ratchet part were higher than those on smooth part; the stresses on anterior border ofHDR were higher than those on posterior border. Changes of stress distribution occurred when hori-zontal forces were loaded. There was severely stress concentration on the junction of the ratchet partt and smooth part. |
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| Keywords: | Harrington rod i Stress Vertical load Photoelasticity |
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