Division 508, Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China
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.
Gerard R.Minimum Weight Analysis of Compression Structures[M].New York:New York University Press,1956.
[2]
Tahir Khalid M,ZHANG Xing.Analysis of shear stress distribution in honeycomb aircraft wing structure subjected to(s t) toque[J].Chinese Journal of Aeronautics,1997,10(3):182—187.
Vlasov V Z.Thin-Walled Elastic Beam[M].2nd Ed.Jeruasalem:Israel Prog for Scientific Translation,1961.
[6]
von Karman T H,CHIEN Wei-zang.Torsion with variable twist[J].Journal of the Aeronautical Science,1946,15(10):503—511.
[7]
Murray N W.Introduction to the Theory of Thin-Walled Structure[M].Oxford:Clarendon Press,1984.
[8]
Hadji Argjris J,Dunne P C.The general theory of cylindrical and conical tubes under torsion and bending loads[J].The Journal of the Royal Aeronautical Society,1947,51:434,441,443.