Effect of the stress state on the adhesive strength of an epoxy-bonded assembly

The paper studies the adhesive strength of aluminum alloy specimens bonded with the use of an epoxy adhesive, under the tensile-shear stress state, depending on the testing temperature. Tension of modified Arcan specimens with load angles of 0, 22.5, 45, 67.5, and 90� with respect to the plane of ad...

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Main Authors: Sergey Smirnov, Dmitry Konovalov, Irina Veretennikova, Aleksander Pestov, Viktoria Osipova
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2022-01-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:https://www.fracturae.com/index.php/fis/article/view/3218/3421
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author Sergey Smirnov
Dmitry Konovalov
Irina Veretennikova
Aleksander Pestov
Viktoria Osipova
author_facet Sergey Smirnov
Dmitry Konovalov
Irina Veretennikova
Aleksander Pestov
Viktoria Osipova
author_sort Sergey Smirnov
collection DOAJ
description The paper studies the adhesive strength of aluminum alloy specimens bonded with the use of an epoxy adhesive, under the tensile-shear stress state, depending on the testing temperature. Tension of modified Arcan specimens with load angles of 0, 22.5, 45, 67.5, and 90� with respect to the plane of adhesion is chosen as the experimental method. Experiments were performed at temperatures of -50, +23, and +50 �?. The analysis of the obtained results yields a linear fracture criterion and a fracture locus for the adhesive failure strain energy density, which takes into account the ratio of the elastic properties of the adhesive to those of the substrate. The region bounded by the fracture loci of adhesive strength and ultimate strain energy density determines the conditions for the safe loading of the bonded assembly in terms of the energy and force criteria of adhesive failure. The proposed fracture loci can be used, preferably simultaneously, to estimate the in-service strength and reliability of adhesively bonded assemblies.
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institution Kabale University
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publishDate 2022-01-01
publisher Gruppo Italiano Frattura
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series Fracture and Structural Integrity
spelling doaj-art-2c6dc6837f1343b1ac89a01ff614cc1b2025-01-02T20:55:24ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-01-01165931132510.3221/IGF-ESIS.59.2110.3221/IGF-ESIS.59.21Effect of the stress state on the adhesive strength of an epoxy-bonded assemblySergey SmirnovDmitry KonovalovIrina VeretennikovaAleksander PestovViktoria OsipovaThe paper studies the adhesive strength of aluminum alloy specimens bonded with the use of an epoxy adhesive, under the tensile-shear stress state, depending on the testing temperature. Tension of modified Arcan specimens with load angles of 0, 22.5, 45, 67.5, and 90� with respect to the plane of adhesion is chosen as the experimental method. Experiments were performed at temperatures of -50, +23, and +50 �?. The analysis of the obtained results yields a linear fracture criterion and a fracture locus for the adhesive failure strain energy density, which takes into account the ratio of the elastic properties of the adhesive to those of the substrate. The region bounded by the fracture loci of adhesive strength and ultimate strain energy density determines the conditions for the safe loading of the bonded assembly in terms of the energy and force criteria of adhesive failure. The proposed fracture loci can be used, preferably simultaneously, to estimate the in-service strength and reliability of adhesively bonded assemblies.https://www.fracturae.com/index.php/fis/article/view/3218/3421polymer coatingstress statearcan specimensfracture criterionadhesives
spellingShingle Sergey Smirnov
Dmitry Konovalov
Irina Veretennikova
Aleksander Pestov
Viktoria Osipova
Effect of the stress state on the adhesive strength of an epoxy-bonded assembly
Fracture and Structural Integrity
polymer coating
stress state
arcan specimens
fracture criterion
adhesives
title Effect of the stress state on the adhesive strength of an epoxy-bonded assembly
title_full Effect of the stress state on the adhesive strength of an epoxy-bonded assembly
title_fullStr Effect of the stress state on the adhesive strength of an epoxy-bonded assembly
title_full_unstemmed Effect of the stress state on the adhesive strength of an epoxy-bonded assembly
title_short Effect of the stress state on the adhesive strength of an epoxy-bonded assembly
title_sort effect of the stress state on the adhesive strength of an epoxy bonded assembly
topic polymer coating
stress state
arcan specimens
fracture criterion
adhesives
url https://www.fracturae.com/index.php/fis/article/view/3218/3421
work_keys_str_mv AT sergeysmirnov effectofthestressstateontheadhesivestrengthofanepoxybondedassembly
AT dmitrykonovalov effectofthestressstateontheadhesivestrengthofanepoxybondedassembly
AT irinaveretennikova effectofthestressstateontheadhesivestrengthofanepoxybondedassembly
AT aleksanderpestov effectofthestressstateontheadhesivestrengthofanepoxybondedassembly
AT viktoriaosipova effectofthestressstateontheadhesivestrengthofanepoxybondedassembly