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S. V. Smirnov, I. A. Veretennikova, D. I. Vichuzhanin, A. V. Pestov

DETERMINATION OF THE ADHESIVE STRENGTH OF A LAMINATED GLUE MATERIAL UNDER THREE-POINT BENDING

DOI: 10.17804/2410-9908.2019.6.026-036

The test procedure and the results of testing the effect of stress on the adhesive strength of a glue joint under shear are discussed. Three-point bending testing of samples of an AMg6-NVP aluminum-magnesium multilayer alloy and a two-component cold-curing epoxy glue is chosen as a research method. An experimental correlation between the specific work of shear-type adhesive failure and the stress state has been obtained from video analysis and finite element modeling. It is shown that low adhesive strength is observed in the presence of tensile stresses normal to the joint plane. The work spent on shear-type adhesive failure intensively increases under the action of compressive normal stresses. The results can be used to evaluate the structural strength of adhesive joints under a complex stress state.

Acknowledgments: The experimental procedures for testing polymer coatings were developed in accordance with the research plan for the IES UB RAS, theme AAAA-A18-118020790145-0. The Ural Branch of the RAS financially supported (project 18-11-1-11) the purchase of the test materials and the three-point bending study of the effect of the stress state on the specific work of shear-type adhesive failure for a glue joint. The equipment installed in the Plastometriya collective use center, IES UB RAS, was used in the experimental investigation.

Keywords: adhesive failure, glue joint, epoxy glue, three-point bending test

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Article reference

Determination of the Adhesive Strength of a Laminated Glue Material under Three-Point Bending / S. V. Smirnov, I. A. Veretennikova, D. I. Vichuzhanin, A. V. Pestov // Diagnostics, Resource and Mechanics of materials and structures. - 2019. - Iss. 6. - P. 25-36. -
DOI: 10.17804/2410-9908.2019.6.026-036. -
URL: http://eng.dream-journal.org/issues/2019-6/2019-6_277.html
(accessed: 05/22/2024).

 

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Founder:  Institute of Engineering Science, Russian Academy of Sciences (Ural Branch)
Chief Editor:  S.V. Smirnov
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