PSI - Issue 54

ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ Available online at www.sciencedirect.com ^ĐŝĞŶĐĞ ŝƌĞĐƚ

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

Procedia Structural Integrity 54 (2024) 406–413

© 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 ICSI 2023 organizers Abstract Adhesive joints are increasingly used in various industrial sectors and, depending on the application, different types of configurations can be considered. Although scarf joints have already been studied in the literature, the number of studies that analyze different geometries and adhesives is still scarce. The objective of this work is the parametric numerical study of scarf adhesive joints in tension with different adhesives (Araldite ® AV138, Araldite ® 2015 and Sikaforce ® 7752) and different scarf angles or  (3.43°, 10 °, 15°, 20°, 30° and 45°) by the eXtended Finite Element Method (XFEM). The developed numerical work includes the distribution of the damage variable and joint strength. It was found that joints with  =3.43° present the best results in terms of tensile strength of the joints. The Araldite ® AV138 presents the best tensile behavior, regardless of the  value. Based on the results obtained, it was considered that the XFEM is a tool that can be accurately used to design scarf adhesive joints. © 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 ICSI 2023 organizers Keywords: Adhesive joint; eXtended Finite Element Method; Crack propagation method. 1. Introduction Currently, adhesively bonded joints have wide applicability and are used in various industrial sectors. The aeronautical industry was the one behind the widespread usage this joining method. The use of adhesive joints in various applications proves to be more advantageous compared to more traditional mechanical joining methods, Abstract Adhesive joints are increasingly used in various industrial sectors and, depending on the application, different types of configurations can be considered. Although scarf joints have already been studied in the literature, the number of studies that analyze different geometries and adhesives is still scarce. The objective of this work is the parametric numerical study of scarf adhesive joints in tension with different adhesives (Araldite ® AV138, Araldite ® 2015 and Sikaforce ® 7752) and different scarf angles or  (3.43°, 10 °, 15°, 20°, 30° and 45°) by the eXtended Finite Element Method (XFEM). The developed numerical work includes the distribution of the damage variable and joint strength. It was found that joints with  =3.43° present the best results in terms of tensile strength of the joints. The Araldite ® AV138 presents the best tensile behavior, regardless of the  value. Based on the results obtained, it was considered that the XFEM is a tool that can be accurately used to design scarf adhesive joints. © 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 ICSI 2023 organizers Keywords: Adhesive joint; eXtended Finite Element Method; Crack propagation method. 1. Introduction Currently, adhesively bonded joints have wide applicability and are used in various industrial sectors. The aeronautical industry was the one behind the widespread usage this joining method. The use of adhesive joints in various applications proves to be more advantageous compared to more traditional mechanical joining methods, International Conference on Structural Integrity 2023 (ICSI 2023) eXtended Finite Element Method applied to the tensile strength evaluation of scarf adhesive joints I.R.S. Araújo a , G.J.C. Pinheiro a , R.J.B. Rocha b , R.D.S.G. Campilho a,b, *, L.D.C. Ramalho b a Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. b INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal. International Conference on Structural Integrity 2023 (ICSI 2023) eXtended Finite Element Method applied to the tensile strength evaluation of scarf adhesive joints I.R.S. Araújo a , G.J.C. Pinheiro a , R.J.B. Rocha b , R.D.S.G. Campilho a,b, *, L.D.C. Ramalho b a Departamento de Engenharia Mecânica, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. b INEGI – Pólo FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

* Corresponding author. Tel.: +351 939526892; fax: +351 228321159. E-mail address: raulcampilho@gmail.com * Corresponding author. Tel.: +351 939526892; fax: +351 228321159. E-mail address: raulcampilho@gmail.com

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 ICSI 2023 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 ICSI 2023 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 ICSI 2023 organizers 10.1016/j.prostr.2024.01.100