PSI - Issue 65

ScienceDirect Structural Integrity Procedia 00 (2024) 000–000 Structural Integrity Procedia 00 (2024) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 65 (2024) 263–268

The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) The effect of temperature on the strength of epoxy adhesive joints under Brazilian testing The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) The effect of temperature on the strength of epoxy adhesive joints under Brazilian testing

Sergey Smirnov, Irina Veretennikova*, Dmitry Vichuzhanin Institute of Engineering Science, UB RAS, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia Sergey Smirnov, Irina Veretennikova*, Dmitry Vichuzhanin Institute of Engineering Science, UB RAS, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia

Abstract Abstract

The paper reports the results of Brazilian tests on aluminum alloy specimens with an epoxy interlayer. ED-20 epoxy resin cured by polyamidepolyamine and diethylenetriamine is used as the interlayer. The stress state is varied by altering the tilt angle of the adhesion plane to the applied load in the range between 0 and 20 degrees. The experiments were performed at 50, +25, and +50°, and this corresponds to the range of climatic temperatures on the Eurasian continent. The experiments show that the composition of the curing agent affects differently the strength of the joints, depending on temperature and the angle between the action of the loading force and the adhesion plane. © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) The paper reports the results of Brazilian tests on aluminum alloy specimens with an epoxy interlayer. ED-20 epoxy resin cured by polyamidepolyamine and diethylenetriamine is used as the interlayer. The stress state is varied by altering the tilt angle of the adhesion plane to the applied load in the range between 0 and 20 degrees. The experiments were performed at 50, +25, and +50°, and this corresponds to the range of climatic temperatures on the Eurasian continent. The experiments show that the composition of the curing agent affects differently the strength of the joints, depending on temperature and the angle between the action of the loading force and the adhesion plane. © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: Brazilian test; epoxy resin; interlayer; stress-state effect © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Peer-review under responsibility of MRDMS 2023 organizers Keywords: Brazilian test; epoxy resin; interlayer; stress-state effect Evaluation of the strength of an adhesive joint in metal-polymer materials is a relevant problem in structural materials science (Volinsky et. al. (2002), Voyiadjis (2022), Smirnov et. al. (2019)). One of the applicable techniques is radial compression of cylinder halves pasted together, which was developed by Carneiro (1947, 1953) and Akazawa (1953) and referred to as Brazilian disk, Brazil-nut-sandwich, etc. in the literature (e. g. Wang et. al. (1990), Volinsky et. al. (2002), Borroso et. al. (2012), and Vicentini (2012)). Conventionally, this technique is widely used to evaluate the ultimate strength of rock samples and brittle materials, like in Ren et.al. (2022), Hou Evaluation of the strength of an adhesive joint in metal-polymer materials is a relevant problem in structural materials science (Volinsky et. al. (2002), Voyiadjis (2022), Smirnov et. al. (2019)). One of the applicable techniques is radial compression of cylinder halves pasted together, which was developed by Carneiro (1947, 1953) and Akazawa (1953) and referred to as Brazilian disk, Brazil-nut-sandwich, etc. in the literature (e. g. Wang et. al. (1990), Volinsky et. al. (2002), Borroso et. al. (2012), and Vicentini (2012)). Conventionally, this technique is widely used to evaluate the ultimate strength of rock samples and brittle materials, like in Ren et.al. (2022), Hou 1. Introduction 1. Introduction

* Corresponding author. Tel.: +79089291291 E-mail address: stpxia@gmail.com * Corresponding author. Tel.: +79089291291 E-mail address: stpxia@gmail.com

2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 10.1016/j.prostr.2024.11.039