PSI - Issue 50

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 50 (2023) 299–306

© 2023 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 the scientific committee of the MRDMS 2022 organizers Abstract The presented work is devoted to the study of the strength of adhesive joints of composite strips. Not the most effective, but very common and simple type of the adhesive connection is overlapping, and exactly such connections were considered in the work. Theoretical studies of overlapping adhesive joints with the acceptance of certain hypotheses show that the strength of the joint depends on the stiffness characteristics of the adhesive and the materials being joined, as well as on the geometric dimensions of the adhesive zone itself. Tensile tests performed on adhesive composite joints show a great influence on the strength of the adhesive zone geometry while the contact area of the parts remains unchanged. The experimental data are confirmed by the strain values obtained by digital image correlation method. © 2023 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 the scientific committee of the MRDMS 2022 organizers Keywords: Polymer composite materials, adhesive joints, glues, geometrical characteristics, joint strength. 1. Introduction Despite the fact that in the case of composites the material and the construction are created simultaneously, the joints cannot be avoided. One of the most common ways to join composite parts is with adhesives. Adhesives are also often used to create hybrid joints together with stitching, riveting, bolting, etc. Abstract The presented work is devoted to the study of the strength of adhesive joints of composite strips. Not the most effective, but very common and simple type of the adhesive connection is overlapping, and exactly such connections were considered in the work. Theoretical studies of overlapping adhesive joints with the acceptance of certain hypotheses show that the strength of the joint depends on the stiffness characteristics of the adhesive and the materials being joined, as well as on the geometric dimensions of the adhesive zone itself. Tensile tests performed on adhesive composite joints show a great influence on the strength of the adhesive zone geometry while the contact area of the parts remains unchanged. The experimental data are confirmed by the strain values obtained by digital image correlation method. © 2023 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 the scientific committee of the MRDMS 2022 organizers Keywords: Polymer composite materials, adhesive joints, glues, geometrical characteristics, joint strength. 1. Introduction Despite the fact that in the case of composites the material and the construction are created simultaneously, the joints cannot be avoided. One of the most common ways to join composite parts is with adhesives. Adhesives are also often used to create hybrid joints together with stitching, riveting, bolting, etc. 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) The effect of geometrical characteristics of the joining area on the strength of adhesive joint of composite parts Danila D. Vlasov a , Taras P. Plugatar` a , Nikolay A. Tatus` a,b *, Artem E. Polyakov a a Mechanical Engineering Research Institute of the Russian Academy of Sciences named after A.A. Blagonravov, Malyi Kharitonyevsky Pereulok 4, Moscow, 101000, Russia b Moscow State University of Civil Engineering (MGSU), Yaroslavskoye Shosse26, Moscow, 129337 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) The effect of geometrical characteristics of the joining area on the strength of adhesive joint of composite parts Danila D. Vlasov a , Taras P. Plugatar` a , Nikolay A. Tatus` a,b *, Artem E. Polyakov a a Mechanical Engineering Research Institute of the Russian Academy of Sciences named after A.A. Blagonravov, Malyi Kharitonyevsky Pereulok 4, Moscow, 101000, Russia b Moscow State University of Civil Engineering (MGSU), Yaroslavskoye Shosse26, Moscow, 129337

* Corresponding author. Tel.: +7-499-135-7751 E-mail address: nikalet@mail.ru * Corresponding author. Tel.: +7-499-135-7751 E-mail address: nikalet@mail.ru

2452-3216 © 2023 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 the scientific committee of the MRDMS 2022 organizers 2452-3216 © 2023 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 the scientific committee of the MRDMS 2022 organizers

2452-3216 © 2023 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 the scientific committee of the MRDMS 2022 organizers 10.1016/j.prostr.2023.10.054