| 李育楷,王全凤.考虑剪切变形的矩形截面薄壁杆件畸变分析[J].计算力学学报,2004,21(2):247~252 |
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| 考虑剪切变形的矩形截面薄壁杆件畸变分析 |
| Distortion of thin-walled bar with rectangular section taking account of shear deformation |
| 修订日期：2002-07-08 |
| DOI：10.7511/jslx20042045 |
| 中文关键词: 剪切变形 薄壁杆件 扭转 分布函数 畸变位移 畸变应力 翘曲位移 结构力学 |
| 英文关键词:thin-walled bar,torsion,distortion |
| 基金项目: |
| 李育楷 王全凤 |
| 华侨大学土木工程系,福建泉州362011 |
| 摘要点击次数: 1689 |
| 全文下载次数: 9 |
| 中文摘要: |
| 在以往不考虑剪切变形的畸变分析理论基础上，假设翘曲位移及切向位移的分布函数，考虑剪切变形的影响，利用最小势能原理建立单位均布畸变荷载作用下的畸变角微分方程。采用一般解法对该畸变角微分方程进行求解，并推导求解的初参数法。随之，通过实例验证了本文理论的正确性，结果表明考虑剪切变形的影响大大提高了考虑畸变效应的计算精度。 |
| 英文摘要: |
| Based on the traditional distortion theory which did not take shear deformation into account, the warping displacement function and tangential displacement function under anti-symmetrical load are supposed. Then taking shear deformation into account and with potential principle, the governing differential equation for distortion angle subjected to uniformly distributed distortion load is established. The differential equation is solved and the format of initial parameters is deduced. With a case, the theory proposed in this paper is verified. It is drawn that taking shear deformation into account results in a fairly higher accuracy. |
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