Abstract
On the basis about studying free bending for box beam with rectangular cross-section filled by honeycomb core, supplementary displacements and stresses of restrained bending for such beam were analyzed. The hypothesis for separated variables was adopted to solve displacement. According to this, three aspect equations of geometrical, physical and balance were obtained. With Galerkin's method, it is summed up as two-order ordinary differential equations with the attenuation character. Analysis makes clear that attenuation speed of stress is concerned with a big load or a small one, geometric dimensions of cross-section of beam, and physical parameter of material.
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Communicated by HE Fu-bao, Original Member of Editorial Committee, AMM
Foundation item: Aeronauties Science Foundation of China (99B51024)
Biography: ZHANG Ying-shi (1948≈)
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Ying-shi, Z., Xing, Z. Stress analysis of restrained bending for box beam with rectangular cross-section filled by honeycomb core. Appl Math Mech 25, 1249–1256 (2004). https://doi.org/10.1007/BF02438280
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DOI: https://doi.org/10.1007/BF02438280