【摘 要】
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On the basis about studying free bending for box beam with rectangular crosssection filled by honeycomb core, supplementary displacements and stresses of restra
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On the basis about studying free bending for box beam with rectangular crosssection 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 crosssection of beam, and physical parameter of material.
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