PSI - Issue 47

Available online at www.sciencedirect.com 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

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

ScienceDirect

Procedia Structural Integrity 47 (2023) 408–416

© 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 IGF27 chairpersons In this work, a methodology to model the FRPT was developed and validated with experimental data. The proposed numerical model employs the FEM and CZM and accurately represents the ASTM D3167 standard, including the interactions with the experimental device following a two-dimensional approach. Furthermore, an explicit solver was employed due to the inherent non-linearities of the FRPT. As a case study, the adhesive Araldite® 2015 was experimentally tested and then modelled. The evolution of peel strength as the test progresses shows a comparable behaviour in both numerical and experimental data. Despite this, the numerical model shows several similarities with the physical test throughout the simulation, indicating that the model accurately represents the phenomenon; therefore, it is suitable for further research on adhesive joints subjected to peel loads. © 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 IGF27 chairpersons Keywords: Floating roller peel test; adhesive joints; cohesive-zone modelling; peel strength; numerical modelling. Abstract Although most of the applications of adhesive joints are designed to sustain primarily shear loads, some aircraft and maritime applications are subject mostly to peel loads, resulting in weaker joints. The peel strength of adhesives can be obtained through the standardized Floating Roller Peel Test (FRPT). On the other hand, computational models of adhesive joints provide insight into the behaviour of these joints under load, providing information for subsequent engineering design. The Finite Element Method (FEM) together with Cohesive Zone Modelling (CZM) had been successfully employed in the study of different adhesive joint configurations, showing good agreement with experimental data. Despite the importance of the FRPT, little numerical modelling in this regard was found in the literature. In this work, a methodology to model the FRPT was developed and validated with experimental data. The proposed numerical model employs the FEM and CZM and accurately represents the ASTM D3167 standard, including the interactions with the experimental device following a two-dimensional approach. Furthermore, an explicit solver was employed due to the inherent non-linearities of the FRPT. As a case study, the adhesive Araldite® 2015 was experimentally tested and then modelled. The evolution of peel strength as the test progresses shows a comparable behaviour in both numerical and experimental data. Despite this, the numerical model shows several similarities with the physical test throughout the simulation, indicating that the model accurately represents the phenomenon; therefore, it is suitable for further research on adhesive joints subjected to peel loads. © 2023 The Authors. Published by ELSEVIER B.V. Keywords: Floating roller peel test; adhesive joints; cohesive-zone modelling; peel strength; numerical modelling. 27th International Conference on Fracture and Structural Integrity (IGF27) Numerical estimation of the peel strength of adhesive joints via the floating roller peel test J.B.S. Nóbrega a , R.D.S.G. Campilho a,b , I.J. Sánchez-Arce b,c *, P.J.R.O. Nóvoa a,b a ISEP. Departamento de Engenharia Mecânica. Instituto Politécnico de Porto. Rua Dr. Bernardino de Almeida 431. 4200-072. Porto Portugal. b LAETA-INEGI. Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial. Rua Dr. Roberto Frias 400. 4200-465. Porto Portugal. c ECT-UTAD, Escola de Ciências e Tecnologia, Universidade de Trás-os-Montes e Alto Douro. Quinta de Prados. 5000-801. Vila Real, Portugal. Abstract Although most of the applications of adhesive joints are designed to sustain primarily shear loads, some aircraft and maritime applications are subject mostly to peel loads, resulting in weaker joints. The peel strength of adhesives can be obtained through the standardized Floating Roller Peel Test (FRPT). On the other hand, computational models of adhesive joints provide insight into the behaviour of these joints under load, providing information for subsequent engineering design. The Finite Element Method (FEM) together with Cohesive Zone Modelling (CZM) had been successfully employed in the study of different adhesive joint configurations, showing good agreement with experimental data. Despite the importance of the FRPT, little numerical modelling in this regard was found in the literature. 27th International Conference on Fracture and Structural Integrity (IGF27) Numerical estimation of the peel strength of adhesive joints via the floating roller peel test J.B.S. Nóbrega a , R.D.S.G. Campilho a,b , I.J. Sánchez-Arce b,c *, P.J.R.O. Nóvoa a,b a ISEP. Departamento de Engenharia Mecânica. Instituto Politécnico de Porto. Rua Dr. Bernardino de Almeida 431. 4200-072. Porto Portugal. b LAETA-INEGI. Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial. Rua Dr. Roberto Frias 400. 4200-465. Porto Portugal. c ECT-UTAD, Escola de Ciências e Tecnologia, Universidade de Trás-os-Montes e Alto Douro. Quinta de Prados. 5000-801. Vila Real, Portugal.

* Corresponding author. Tel.: +351-912-414-207. E-mail address: isidrodjsa@gmail.com * Corresponding author. Tel.: +351-912-414-207. E-mail address: isidrodjsa@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 IGF27 chairpersons 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 IGF27 chairpersons

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 IGF27 chairpersons 10.1016/j.prostr.2023.07.084