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Elastic behaviour of an orthotropic beam/one-dimensional plate of uniform and variable thickness

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Abstract

In this paper, the analysis of the title problem is based on mixed first-order thick-beam one-dimensional plate theory, and on using a small-parameter approach towards its numerical solution. The boundary conditions at the edges of the beam may be quite general, and between these two edges the beam may have varying thickness. Closed-form solutions have been developed for the static response of orthotropic beams with nonlinear thickness variation subjected to uniform loading. The accuracy of the present model is demonstrated by problems for which exact solutions and numerical results are available, and the results are also presented for a variety of problems whose solutions are not available in the literature.

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References

  1. S. P. Timoshenko, On the correction for shear of the differential equation for transversevibrations of prismatic bars. Phi. Mag. 41 (1921) 744–746.

    Google Scholar 

  2. F. Essenburg, On thesignificance of the inclusion of the effect of transverse normal strain in problems involving beams with surface constraints. J. Appl. Mech. 42 (1975) 127–132.

    Google Scholar 

  3. M. Levinson, A new rectangular beamtheory. J. Sound Vibr. 74 (1981) 82–87.

    Google Scholar 

  4. W. B. Bickford, A consistent higher-order beamtheory. Dev. Theor. Appl. Mech. 11 (1982) 137–150.

    Google Scholar 

  5. J. N. Reddy, Energy and VariationalMethods in Applied Mechanics. New York: Wiley (1984) 560 pp.

    Google Scholar 

  6. A. A. Khdeir and J. N. Reddy,Free vibration of cross-ply laminated beams with arbitrary boundary conditions. Int. J. Eng. Sci. 32 (1994) 1971–1980.

    Google Scholar 

  7. A. M. Zenkour, Maupertuis-Lagrange mixed variational formula for laminatedcomposite structures with a refined-order beam theory. Int. J. Non-linear Mech. 32 (1997) 989–1001.

    Google Scholar 

  8. S. P. Timoshenko and S. Woinowski-Krieger, Theory of Plates and Shells. Singapore: McGraw-Hill (1959) 580 pp.

    Google Scholar 

  9. A. V. Krishna Murty, Analysis of short beams. AIAA J. 8 (1970)2098–2100.

    Google Scholar 

  10. P. R. Heyliger and J. N. Reddy, A higher-order beam finite element for bending andvibration problems. J. Sound Vibr. 126 (1988) 309–326.

    Google Scholar 

  11. I. H. Shames and C. L. Dym.Energy and Finite ElementMethods in Structural Mechanics. New York: Taylor & Francis (1990) 727 pp.

    Google Scholar 

  12. A. A. Khdeir and J. N. Reddy, An exact solution for the bending of thin and thick cross-ply laminatedbeams. Compos. Struct. 37 (1997) 195–203.

    Google Scholar 

  13. J. N. Reddy, C. M. Wang and K. H. Lee,Relationships between bending solutions of classical and shear deformation beam theories. Int. J. Solids Struct. 34 (1997) 3373–3384.

    Google Scholar 

  14. A. M. Zenkour, Transverse shear and normal deformation theory forbending analysis of laminated and sandwich elastic beams. Mech. Compos. Mater. Struct. 6 (1999) 267–283.

    Google Scholar 

  15. E. Reissner, Remark on the theory of bending of plates of variable thickness. J. Math.Phys. 5 (1934) 363–366.

    Google Scholar 

  16. M. Ogha and T. Shigematsu, Bending analysis of plates withvariable thickness plates by boundary elementtransfer matrix method. Comput. Struct. 28 (1988) 635–641.

    Google Scholar 

  17. D. G. Fertis and C. T. Lee, Elastic and inelastic analysis of variable thickness plates byusing equivalent systems. Int. J. Mech. Struct. Mach. 21 (1993) 201–236.

    Google Scholar 

  18. D. G. Fertis,Advanced Mechanics of Structures. New York: Marcel Dekker (1996) 490 pp.

    Google Scholar 

  19. A. M. Zenkour,Natural vibration analysis of symmetrical cross-ply laminated plates using a mixed variational formulation. Eur. J. Mech. A/Solids 19 (2000) 469–485.

    Google Scholar 

  20. A. M. Zenkour, Buckling and free vibration of elasticplates using simple and mixed shear deformation theories. Acta Mech. 146 (2001) 183–197.

    Google Scholar 

  21. S. G. Lekhnitskii, Theory of Elasticity of an Anisotropic body. Moscow: Mir (1981) 430 pp.

    Google Scholar 

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Zenkour, A. Elastic behaviour of an orthotropic beam/one-dimensional plate of uniform and variable thickness. Journal of Engineering Mathematics 44, 331–344 (2002). https://doi.org/10.1023/A:1021255410184

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