Analysis of adhesively bonded composite lap joints

Conference · Fri Dec 30 23:00:00 EST 1994

OSTI ID:89798

Tong, L ^[1]; Kuruppu, M; Kelly, D ^[2]

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1. Cooperative Research Centre for Aerospace Structures, Bankstown (Australia)
2. Univ. of New South Wales, Sydney (Australia). School of Mechanical and Manufacturing Engineering

A new nonlinear formulation is developed for the governing equations for the shear and peel stresses in adhesively bonded composite double lap joints. The new formulation allows arbitrary nonlinear stress-strain characteristics in both shear and peel behavior. The equations are numerically integrated using a shooting technique and Newton-Raphson method behind a user friendly interface. The failure loads are predicted by utilizing the maximum stress criterion, interlaminar delamination and the energy density failure criteria. Numerical examples are presented to demonstrate the effect of the nonlinear adhesive behavior on the stress distribution and predict the failure load and the associated mode.

• OSTI ID: 89798
• Report Number(s): CONF-9409291--; ISBN 1-56676-220-0
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESIVES
COMPOSITE MATERIALS
DIFFERENTIAL EQUATIONS
FAILURES
JOINTS
MATHEMATICAL MODELS
NUMERICAL ANALYSIS
SHEAR PROPERTIES
STRAINS
STRESSES