Thin walled beams

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A thin walled beam is a very useful type of beam (structure). The cross section of thin walled beams is made up from thin panels connected among themselves to create closed or open cross sections of a beam (structure). Typical closed sections include round, square, and rectangular tubes. Open sections include I-beams, T-beams, L-beams, and so on. Thin walled beams exist because their bending stiffness per unit cross sectional area is much higher than that for solid cross sections such a rod or bar. In this way, stiff beams can be achieved with minimum weight. Thin walled beams are particularly useful when the material is a composite laminate. For metallic structures, the theory is fully developed in.[1][2][3][4] Pioneer work on composite laminates thin walled beams was done by Librescu.


  1. ^ Cook, R. D. and Young, W. C., Advanced Mechanics of Materials, Macmillan, New York, NY, 1st edition, 1985.
  2. ^ Cook, R. D. and Young, W. C., Advanced Mechanics of Materials, Prentice-Hall, Upper Saddle River, NJ, 2nd edition, 1999.
  3. ^ Budinas, R. G. and Nisbett, J. K., Shigley’s Mechanical Engineering Design, McGraw- Hill, New York, NY, 8th edition, 2008.
  4. ^ Boresi, A. P., Schmidt, R. J., and Sidebottom, O. M., Advanced Strength of Materials, Wiley, New York, NY, 5th edition, 1993.