Formulation and evaluation of an analytical model for composite box-beams

Edward Smith, Inderjit Chopra

Research output: Contribution to journalConference article

22 Scopus citations

Abstract

A direct analytical beam formulation is developed for predicting the effective elastic stiffnesses and corresponding load deformation behavior of tailored composite box-beams. Deformation of the beam is described by extension, bending, torsion, transverse shearing, and torsion-related out-of-plane warping. Evaluation and validation of the analysis is conducted by correlation with both experimental results and detailed finite element solutions. The analysis is evaluated for thin-walled composite beams with no elastic coupling, designs with varying degrees of extension-torsion and bending-shear couplings, and designs with bending-torsion and extension-shear coupling. The analysis performed well over a wide range of test cases, generally predicting beam deformations within 10% of detailed finite element solutions. The importance of three non-classical structural phenomenon is systematically investigated for coupled composite beams.

Original languageEnglish (US)
Pages (from-to)759-782
Number of pages24
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Issue numberpt 2
StatePublished - Jan 1 1990
Event31st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Part 3 (of 4): Structural Dynamics I - Long Beach, CA, USA
Duration: Apr 2 1990Apr 4 1990

All Science Journal Classification (ASJC) codes

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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