Viscoelastic Analysis of Adhesively Bonded Double – Lap Joint

Sang Soon Lee

doi:10.4028/www.scientific.net/KEM.345-346.1473

Paper Titles

Effect of Heating Rate on Al Bonding in Air by Inserted A5056 Disk
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Laser Welding Characteristics of Cold Rolled Carbon Steel Utilize Continuous Wave Nd:YAG Laser
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Experiment Investigation on Failure Behavior of Partial-Strength Connections with Column Skin Plate Deformation
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Influence of the Welded Joint on the Mechanical Behavior of Steel Piles during Static and Dynamic Deformation
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Viscoelastic Analysis of Adhesively Bonded Double – Lap Joint
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Surface Friction Welding of Thin Metal Sheets
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Modeling of Weld Beads for Laser-GMA Hybrid Welding
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Strength and Modal Analysis on Welded Bracket of the Large-Scale Agitator
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Numerical Analysis of Mechanical Test Methods for Evaluating Shear Strength of Joint by Using Interface Element
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Viscoelastic Analysis of Adhesively Bonded Double – Lap Joint

Abstract:

In this paper, stress distribution in a double lap joint subjected to a tensile load is investigated using the boundary element method. The adhesive used in this study is a commercial epoxy system which can be cured at room temperature. The adhesive is assumed to be linearly viscoelastic. The order of the singularity is obtained numerically for a given viscoelastic model. The numerical results show that interface stresses are large enough to initiate local yielding or edge cracks. Since the exceedingly large stresses cannot be borne by the adhesive layer, edge cracks can occur at the interface corner.