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 ScienceDirect Available online at www.sciencedirect.com ScienceDirect

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

Procedia Structural Integrity 33 (2021) 138–148

IGF26 - 26th International Conference on Fracture and Structural Integrity Impact loading analysis of tubular adhesive joints A.F.M.V. Silva a , L.M.C. Peres a , R.D.S.G. Campilho a,b *, R.J.B. Rocha b 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 IGF26 - 26th International Conference on Fracture and Structural Integrity Impact loading analysis of tubular adhesive joints A.F.M.V. Silva a , L.M.C. Peres a , R.D.S.G. Campilho a,b *, R.J.B. Rocha b a Instituto Superior de Engenharia do Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. b IN GI – Pólo FEUP, Rua r. Robert Frias, 400, 4200-465 Porto, Portugal

© 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 The constant evolution of the industry and the need to use new types of materials lead to the increasing use of adhesive joints. The applications of tubular adhesive joints have also considerably grown, although studies on this type of joint are very scarce, especially under impact loads. Therefore, it is of extreme importance to be able to predict and enhance this type of joints to withstand these specific loads. In this work, the impact strength of tubular adhesive joints with AW6082-T651 aluminum alloy adherends and the adhesive Araldite ® AV138 is studied. For this purpose, the modification of the main geometric parameters and is considered: overlap length ( L O ) and outer tube thickness ( t SE ). The analysis includes the peel (  y ) and shear stress (  xy ) distributions, enabling to better compare the different geometries. Maximum load ( P m ) and dissipated energy at failure ( U ) prediction is accomplished using cohesive zone models (CZM). Previous CZM validation with single-lap joints (SLJ) was accomplished. With this study, it was possible to evaluate the different geometrical parameters, select the optimal geometry, and to validate the cohesive zone technique for the impact strength prediction of tubular adhesive joints. © 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: Adhesive joint; Cohesive Zone Models; Structural Adhesive; Impact loading. 1. Introduction Adhesive bonding is a process of joining two surfaces together. Typically, it consists of using an adhesive, which can be epoxy or another compound between a wide range of plastic agents, whose bonding takes place either through the evaporation of a solvent or by curing with heat and/or pressure during a pre-established time. The adhesive bonding technology has a widespread use in the most diverse industries, from aerospace to motorsports and leisure equipment, Abstract The constant evolution of the industry and the need to use new types of materials lead to the increasing use of adhesive joints. The appli ations of tubular ad s ve joints hav also c n iderably grown, lthough studies on this type of joint are very scarce, es e i lly under imp ct loads. Therefore, it is of extrem importance to be able o predict and enhance this type of joints to withst nd thes specific In this work, the impact strength of tubular adhesive joints with AW6082-T651 aluminum alloy adhere s and the adhesive Araldi e ® AV138 is studied. For this purpose, the modificat on of t e main geometric parameters and is consi ered: overlap length ( L O ) and outer tube thickness ( t SE ). Th analysis in ludes the peel (  y ) and she str ss (  xy ) distributions, enabling to better compare the diff rent geometries. Maximum load ( P m ) and dissipated e ergy t failure ( U pred ction i accomplished using cohesive zone models (CZM). Previous CZM validatio with single-lap joints (SLJ) was accomplished. With th study, it was possible to evaluate the different geometrical p rameters, select the optimal geometry, and to validate the cohesive zone technique for th impact str ngth prediction of tubul r adhesive joints. © 2021 The Author . 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 scientifi committee of the IGF ExCo K ywords: Adhesive joint; Cohesive Zone Models; Structural Adhesive; Impact loading. 1. Introduction Adhesive bonding is a process of joining two surfaces together. Typically, it consists of using an adhesive, which can be poxy r another compound between a wide r nge of plastic agents, whose bonding takes place either throug the evaporation of a solvent or by curing with heat and/or pressure during a pre-esta lished time. The adh sive bonding echnology has a widespread use in the most diverse industries, from aeros ac to motorsports and leisure equipme t,

* 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-revi w under responsibility of the scientifi 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.2021.10.018