Structural Engineering and Mechanics

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Mechanical properties of thin-walled composite beams of generic open and closed sections

  • Rajasekaran, S. (PSG College of Technology)
  • Received : 2004.12.08
  • Accepted : 2005.09.02
  • Published : 2005.11.30
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Abstract

A general analytical model for thin-walled composite beams with an arbitrary open/(or/and) closed cross section and arbitrary laminate stacking sequence i.e., symmetric, anti-symmetric as well as un-symmetric with respect to the mid plane of the laminate, is developed in the first paper. All the mechanical properties, mechanical centre of gravity and mechanical shear centre of the cross section are defined in the function of the geometry and the material properties of the section. A program "fungen" and "clprop" are developed in Fortran to compute all the mechanical properties and tested for various isotropic sections first and compared with the available results. The locations of mechanical centre of gravity and mechanical shear centre are given with respect to the fibre angle variation in composite beams. Variations of bending and torsional stiffness are shown to vary with respect to the fibre angle orientations.

Keywords

References

  1. Bauld, N.R., Tzeng, L.S. and Vlasov, A. (1984), 'Theory for fibre reinforced beams with thin-walled open cross section', Int. J. Solids Struct., 20(3), 277-297 https://doi.org/10.1016/0020-7683(84)90039-8
  2. Bhaskar, K. and Librescu, L.A. (1995), 'Geometrically non-linear theory for laminated anisotropic thin-walled beams', Int. J. Eng. Sci., 33(9), 1331-1344 https://doi.org/10.1016/0020-7225(94)00118-4
  3. Chen, W.F. and Atsuta, T. (1977), Theory of Beam-Columns - Vol. 2- Space Behaviour and Design, N.Y., McGraw-Hill
  4. Connor, J.J. (1976), Analysis of Structural Member Systems, The Ronald Press Co., NY
  5. Gjelsvik, A. (1981), The Theory of Thin-Walled Bars, New York, Wiley
  6. Kaw, A.K. (1997), Mechanics of Composite Materials, CRC Press, USA
  7. Lee, J. (2001), 'Centre of gravity and shear centre of thin-walled open cross section composite beams', Comp. Struct., 52, 255-260 https://doi.org/10.1016/S0263-8223(00)00177-X
  8. Murray, D.W. and Rajasekaran, S. (1975), 'A technique for formulating beam equations', J. Eng. Meek, ASCE, 101, No. EM5, Proc. Paper 11613, Oct., 561-573
  9. Murray, N.W. (1984), Introduction to the Theory of Thin-Walled Structures, Clarendon Press, Oxford
  10. Rajasekaran, S. (1994), 'Equations for tapered thin-walled beams of generic open section', J. Eng. Mech., ASCE, 120(8), 1607-1629 https://doi.org/10.1061/(ASCE)0733-9399(1994)120:8(1607)
  11. Rajasekaran, S. and Padmanabhan, S. (1989), 'Equations for curved beams', J. Eng. Mech., ASCE, 115(5), 1094-1111 https://doi.org/10.1061/(ASCE)0733-9399(1989)115:5(1094)
  12. Savic, V., Turtle, M.E. and Zabinsky, Z.B. (2001), 'Optimization of composite I-sections using fibre angles as design variables', Comp. Struct., 53, 265-277 https://doi.org/10.1016/S0263-8223(01)00010-1
  13. Taufik, A., Barrace, J J. and Lorin, F. (1999), 'Composite beam analysis with arbitrary cross section', Comp. Struct, 44, 189-194 https://doi.org/10.1016/S0263-8223(98)00134-2
  14. Vlasov, V.Z. (1961), Thin Walled Elastic Beams, 2nd Ed., Israel Program for Scientific Translation. Jerusalem, Israel, 1961
  15. Wagner, W. and Gruttmann, F. (2002), 'A displacement method for the analysis of flexural shear stresses in thin-walled isotropic composite beams', Comput. Struct., 80, 1843-1851 https://doi.org/10.1016/S0045-7949(02)00223-7
  16. Wu, X.X. and Sun, C.T. (1992), 'Simplified theory for composite Thin-walled beams', AIAA J., 30(12), Dec, 2945-2951 https://doi.org/10.2514/3.11641

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