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Nonlinear Analysis of Bonded Composite Tubular Lap JointsThe present study describes a semi-analytical solution method for predicting the geometrically nonlinear response of a bonded composite tubular single-lap joint subjected to general loading conditions. The transverse shear and normal stresses in the adhesive as well as membrane stress resultants and bending moments in the adherends are determined using this method. The method utilizes the principle of virtual work in conjunction with nonlinear thin-shell theory to model the adherends and a cylindrical shear lag model to represent the kinematics of the thin adhesive layer between the adherends. The kinematic boundary conditions are imposed by employing the Lagrange multiplier method. In the solution procedure, the displacement components for the tubular joint are approximated in terms of non-periodic and periodic B-Spline functions in the longitudinal and circumferential directions, respectively. The approach presented herein represents a rapid-solution alternative to the finite element method. The solution method was validated by comparison against a previously considered tubular single-lap joint. The steep variation of both peeling and shearing stresses near the adhesive edges was successfully captured. The applicability of the present method was also demonstrated by considering tubular bonded lap-joints subjected to pure bending and torsion.
Document ID
20050196820
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
E. Oterkus
(University of Arizona Tucson, Arizona, United States)
E. Madenci
(University of Arizona Tucson, Arizona, United States)
S.S. Smeltzer III
(Langley Research Center Hampton, Virginia, United States)
D. R. Ambur
(Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
August 23, 2013
Publication Date
May 21, 2012
Publication Information
Publication: 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Publisher: American Institute of Aeronautics and Astronautics
Issue Publication Date: April 18, 2005
Subject Category
Mechanical Engineering
Meeting Information
Meeting: 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Location: Austin, TX
Country: US
Start Date: April 18, 2005
End Date: April 21, 2005
Sponsors: American Society of Mechanical Engineers, American Society of Civil Engineers, American Institute of Aeronautics and Astronautics, American Society for Composites, American Helicopter Society
Funding Number(s)
OTHER: 23-064-50-00
Distribution Limits
Public
Copyright
Public Use Permitted.
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