Investigation of composite box beam dynamics using a higher-order theory

Thomas R. McCarthy, Aditi Chattopadhyay

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A higher-order composite box beam theory is developed to model beams with arbitrary wall thicknesses. The theory, which is based on a refined displacement field, approximates the three-dimensional elasticity solution so that the beam cross-sectional properties are not reduced to one-dimensional beam parameters. Both inplane and out-of-plane warping are included automatically in the formulation. The model can accurately capture the tranverse shear stresses through the thickness of each wall while satisfying stress-free boundary conditions on the inner and outer surfaces of the beam. Numerical results are presented for beams with varying wall thicknesses and aspect ratios. The static results are correlated with available experimental data and show excellent agreement. Dynamic results presented show the importance of including inplane and out-of-plane warping deformations in the formulation.

Original languageEnglish (US)
Pages (from-to)273-284
Number of pages12
JournalComposite Structures
Volume41
Issue number3-4
StatePublished - Mar 1998

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Composite materials
Shear stress
Aspect ratio
Elasticity
Boundary conditions

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites

Cite this

Investigation of composite box beam dynamics using a higher-order theory. / McCarthy, Thomas R.; Chattopadhyay, Aditi.

In: Composite Structures, Vol. 41, No. 3-4, 03.1998, p. 273-284.

Research output: Contribution to journalArticle

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