PSI - Issue 47

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

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

Procedia Structural Integrity 47 (2023) 48–55

© 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 Abstract There are currently different available bonded joint geometries that the designer can choose from, including the single-lap joint, double-lap joint, stepped-joint, scarf joint, and tubular joint. Other geometries are designed to sustain peel loads, such as T -joints and L -joints. T -joints are used in different scenarios, including in aircraft (stiffener/skin joints) and in vehicles (B-pillar/rocker joints). The present work consists of a numerical analysis on the adhesive type effect in aluminum T -joints under peel loads, by cohesive zone modelling (CZM). However, CZM validation is previously accomplished. The joints’ assessment initiates with stre ss analysis, and prediction of maximum load ( P m ) and failure energy ( U ), while geometrical modifications are also tested, to enable proposing the best solution for the joint. CZM revealed to be an accurate tool for these joints, and a significant geometric and adhesive influence was detected on the joint performance, to propose the best joint solution. © 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: Adhesive joint; T -joint; Peel loading; Structural adhesive; Cohesive zone models. 1. Introduction At the present time, adhesives are commonly used in countless industries and continue to be a hot-topic among the research community. Adhesive bonding technology presents key advantages when compared with other joining methodologies as riveting or welding, including more uniform stress distributions and the opportunity to join different materials and thicknesses, while preserving their structural integrity, since this joining method does not require drilling 27th International Conference on Fracture and Structural Integrity (IGF27) Numerical evaluation of the adhesive effect on the peel strength of aluminum T -joints J.P.M. Lopes a , R.D.S.G. Campilho a,b, *, R.J.B. Rocha b a ISEP – School of Engineering, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal b INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal Abstract There are currently different available bonded joint geometries that the designer can choose from, including the single-lap joint, double-lap joint, stepped-joint, scarf joint, and tubular joint. Other geometries are designed to sustain peel loads, such as T -joints and L -joints. T -joints are used in different scenarios, including in aircraft (stiffener/skin joints) and in vehicles (B-pillar/rocker joints). The present work consists of a numerical analysis on the adhesive type effect in aluminum T -joints under peel loads, by cohesive zone modelling (CZM). However, CZM validation is previously accomplished. The joints’ assessment initiates with stre ss analysis, and prediction of maximum load ( P m ) and failure energy ( U ), while geometrical modifications are also tested, to enable proposing the best solution for the joint. CZM revealed to be an accurate tool for these joints, and a significant geometric and adhesive influence was detected on the joint performance, to propose the best joint solution. © 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: Adhesive joint; T -joint; Peel loading; Structural adhesive; Cohesive zone models. 1. Introduction At the present time, adhesives are commonly used in countless industries and continue to be a hot-topic among the research community. Adhesive bonding technology presents key advantages when compared with other joining methodologies as riveting or welding, including more uniform stress distributions and the opportunity to join different materials and thicknesses, while preserving their structural integrity, since this joining method does not require drilling 27th International Conference on Fracture and Structural Integrity (IGF27) Numerical evaluation of the adhesive effect on the peel strength of aluminum T -joints J.P.M. Lopes a , R.D.S.G. Campilho a,b, *, R.J.B. Rocha b a ISEP – School of Engineering, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal b INEGI – Pólo FEUP, Rua Dr. Roberto Frias, s/n, 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 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.2023.06.040