| ANALYTICAL SOLUTION OF RESTRAINED TORSIONAL STRESSES AND DISPLACEMENT FOR RECTANGULARSECTION BOX BAR WITH HONTYCOMB CORE |
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| 作者姓名： | 张英世 张行 |
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| 作者单位： | DepartmentofFlightVehicleDesignandAppliedMechanics,BeijingUniversityofAeronauticsandAstronautics,Beijing100083,P.R.China |
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| 基金项目： | theScienceFoundationofAviationofChina (99B51 0 2 4) |
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| 摘 要： | Differential equation of restrained torsion for rectangular-section box bar with honeycomb core was established and solved by using the method of undetermined function. Non-dimension normal stress, shear stress acting in the faceplate and shear stress acting in the honeycomb-core and warping displacement were deduced. Numerical analysis shows the normal stress attenuates quickly along x-axis. Normal stress acting on the cross section at a distance of 20 h from the fixed end is only one per cent of that acting on the fixed end.
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| 关 键 词： | 蜂窝结构 解析解 剪切应力 变形位移 数值分析 |
| 收稿时间： | 21 December 2001 |
Analytical solution of restrained torsional stresses and displacement for rectangular-section box bar with hontycomb core |
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| Zhang?Ying-shi,Zhang?Xing.ANALYTICAL SOLUTION OF RESTRAINED TORSIONAL STRESSES AND DISPLACEMENT FOR RECTANGULARSECTION BOX BAR WITH HONTYCOMB CORE[J].Applied Mathematics and Mechanics(English Edition),2004,25(7):779-785. |
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| Authors: | Zhang Ying-shi Zhang Xing |
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| Institution: | Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, P.R. China |
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| Abstract: | Differential equation of restrained torsion for rectangular-section box bar with honeycomb core was established and solved by using the method of undetermined function.Non-dimension normal stress, shear stress acting in the faceplate and shear stress acting in the honeycomb-core and warping displacement were deduced. Numerical analysis shows the normal stress attenuates quickly along x-axis. Normal stress acting on the cross section at a distance of 20 h from the fixed end is only one per cent of that acting on the fixed end. |
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| Keywords: | honeycomb structure constrain twist attenuation rectangular section box bar normal stress shear stress warping displacement |
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