PSI - Issue 33

ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com Sci nceDire t Available online at www.sciencedirect.com ScienceDirect

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

Procedia Structural Integrity 33 (2021) 115–125

© 2021 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 IGF ExCo Abstract There are several adhesive joint geometries and configurations employed in various industrial sectors, such as aeronautical, automotive, naval, wind energy, and many others. Tubular adhesive joints, although seldom studied, find application in the construction, motorsport or piping industries. This work numerically analyzed by cohesive zone modelling (CZM) the tensile performance of aluminum tubular joints bonded with the adhesive Araldite ® 2015, considering geometric changes that potentially promote a strength improvement. Prior to the numerical study, axisymmetric CZM modelling for this purpose was validated by comparing with experimental results. The geometric changes tested in this work consisted of an outer chamfer, an inner chamfer (both in the adherends), and adding an adhesive fillet at the overlap ends. Moreover, the combined effect of the inner chamfer and adhesive fillet were evaluated. The analyzed geometric changes revealed significant stress reductions, but that not translated in major maximum load ( P m ) variations due to adherend plasticization. © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo Keywords: Joint design; Aluminium and alloys; Tubular joint; Cohesive zone modelling; Joint optimization. 1. Introduction The uses of adhesive bonded joints in several industries are increasing due to significant advantages relative to traditional joining methods such as bolting or riveting. Indeed, adhesive bonded joints present lower stress concentration effects because the load transmission is performed through larger areas, avoid the drilling of holes that IGF26 - 26th International Conference on Fracture and Structural Integrity Numerical analysis of geometrical modification combinations of the tensile strength of tubular adhesive joints M.F.M.O. Rosas a , R.D.S.G. Campilho a,b * , R.D.F. Moreira a a Instituto Superior de Engenharia 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. Abstract There are several adhesive joint geometries and configurations employed in various industrial sectors, such as aeronautical, automotive, nav l, wind energy, and many others. Tub l r adhesive joints, although seldom studied, find applicati in the construction, motorsport or piping industries. This work numerically analyzed by co esive zone mo elli g (CZM) the tensil performance of aluminum tubular joi ts bonded with the adhesive Araldite ® 2015, considering geometric changes that potentially romote a strength improvement. Prior to the numerical study, axisymm tric CZM mo lli for this purpose was validated b comparing with experimental results. The geometric changes tested in this work consisted of an outer chamfer, an inner chamfer (both in the adh rends), and adding an adh siv fillet t the overlap end . Moreover, the combined effect of the i r f r and adhesive fillet were evaluated. The nalyzed geometric changes r vealed significant stress reductions, but t at ot translated in m jor maximum load ( P m ) variations due to a herend plasticization. © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo Keywords: Joint design; Aluminium and alloys; Tubular joint; Cohesive zone modelling; Joint optimization. 1. Introduction The uses of adhesive bonded joints in several industries are increasing due to significant advantages relative to traditional j ining methods such as bolting or riveting. Indeed, dhesive b nded joi ts present lower stress concentr tion effects becau e the lo d transmission s performe throug larg r areas, av id he drilli g f hole that IGF26 - 26th International Conference on Fracture and Structural Integrity Numerical analysis of geometrical modification combinations of the tensile strength of tubular adhesive joints M.F.M.O. Rosas a , R.D.S.G. Campilho a,b * , R.D.F. Moreira a a Instituto Superior de Engenharia 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.: +351939526892; fax: +351228321159. E-mail address: raulcampilho@gmail.com * Corresponding author. Tel.: +351939526892; fax: +351228321159. E-mail address: raulcampilho@gmail.com

2452-3216 © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo 2452-3216 © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo

2452-3216 © 2021 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 IGF ExCo 10.1016/j.prostr.2021.10.016