Dynamic Analysis of Bending-Torsion Coupled Composite Beams Using the Flexibility Influence Function Method Articles uri icon

publication date

  • December 2008

start page

  • 1611

end page

  • 1618

issue

  • 12

volume

  • 50

international standard serial number (ISSN)

  • 0020-7403

electronic international standard serial number (EISSN)

  • 1879-2162

abstract

  • In this work the dynamic behaviour of symmetrical laminated beams was studied, taking into account the effect of bending&-torsion coupling by a one-dimensional model. This model includes the influence of the shear force and rotatory inertia. To solve the equations of motion, the Flexibility Influence Function Method (FIFM) was used. The dynamic displacements (deflection, bending rotation, and torsional rotation) were calculated for a beam in which the deflection and torsional rotation were restricted at its both ends, allowing the bending rotation. The accuracy of this method was determined by using a Three-Dimensional Finite Element Method (FEM3D) model to compare the dynamic displacements. The need was shown to incorporate coupling in the one-dimensional model in order to calculate the dynamic deflection and bending rotation of a composite beam.