Analytical solution of restrained torsional stresses and displacement for rectangular-section box bar with hontycomb core |
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Authors: | Zhang Ying-shi Zhang Xing |
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Affiliation: | 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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