PSI - Issue 77

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ScienceDirect Structural Integrity Procedia 00 (2026) 000–000 Structural Integrity Procedia 00 (2026) 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 77 (2026) 103–110

© 2026 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 ICSI organizers Abstract Adhesive joints are valued for their ability to reduce weight, lower manufacturing costs, and expedite the assembly process. In applications where impact loading is critical, evaluating the dynamic response of adhesive structures becomes essential to ensure safety. This study presents a numerical investigation of tubular adhesive joints subjected to impact loads, examining the effects of different adhesive types. The impact damage was simulated using an adapted cohesive zone model (CZM) implemented in Abaqus ® . A parametric study was conducted including inner ( θ ) and outer ( α ) chamfers on the adherends, and adhesive fillets ( β ). The results include distributions of normal ( σ y ) and shear ( τ xy ) stresses, load-displacement ( P - δ ) behaviour, absorbed energy ( E a ), and peak load ( P m ). The joints’ mechanical performance of adhesive joints was highly sensitive to the design parameters, leading to recommendations to optimize tubular adhesive joints under impact. © 2026 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 ICSI organizers Keywords: Adhesive joint; Structural adhesive; Impact analysis; Cohesive zone models. 1. Introduction The use of structural adhesives has been gaining more prominence in the industry (Rudawska and Wahab 2021, Daissè et al. 2024). Adhesives offer certain advantages over mechanical joints, such as geometrical flexibility in the joined parts, joining of different materials, and weight reduction (Quini and Marinucci 2012, Spaggiari and Orlandini 2024). Tubular joints consist of two tubes bonded by an adhesive. These joints are favored for their high strength-to- Abstract Adhesive joints are valued for their ability to reduce weight, lower manufacturing costs, and expedite the assembly process. In applications where impact loading is critical, evaluating the dynamic response of adhesive structures becomes essential to ensure safety. This study presents a numerical investigation of tubular adhesive joints subjected to impact loads, examining the effects of different adhesive types. The impact damage was simulated using an adapted cohesive zone model (CZM) implemented in Abaqus ® . A parametric study was conducted including inner ( θ ) and outer ( α ) chamfers on the adherends, and adhesive fillets ( β ). The results include distributions of normal ( σ y ) and shear ( τ xy ) stresses, load-displacement ( P - δ ) behaviour, absorbed energy ( E a ), and peak load ( P m ). The joints’ mechanical performance of adhesive joints was highly sensitive to the design parameters, leading to recommendations to optimize tubular adhesive joints under impact. © 2026 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 ICSI organizers Keywords: Adhesive joint; Structural adhesive; Impact analysis; Cohesive zone models. 1. Introduction The use of structural adhesives has been gaining more prominence in the industry (Rudawska and Wahab 2021, Daissè et al. 2024). Adhesives offer certain advantages over mechanical joints, such as geometrical flexibility in the joined parts, joining of different materials, and weight reduction (Quini and Marinucci 2012, Spaggiari and Orlandini 2024). Tubular joints consist of two tubes bonded by an adhesive. These joints are favored for their high strength-to- International Conference on Structural Integrity Impact loading analysis of tubular adhesive joints with geometrical modifications P.D.A. da Silva a , R.D.S.G. Campilho a,b *, M.J.R. Queirós a , D.C. Gonçalves a , K. Madani c a CIDEM, ISEP – School of Engineering, Polytechnic of Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. b Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal. c Department of Mechanical Engineering, University of Sidi Bel Abbes, BP 89, Cité Ben M’hidi, 22000, Sidi Bel Abbes, Algeria. International Conference on Structural Integrity Impact loading analysis of tubular adhesive joints with geometrical modifications P.D.A. da Silva a , R.D.S.G. Campilho a,b *, M.J.R. Queirós a , D.C. Gonçalves a , K. Madani c a CIDEM, ISEP – School of Engineering, Polytechnic of Porto, R. Dr. António Bernardino de Almeida, 431, 4200-072 Porto, Portugal. b Institute of Science and Innovation in Mechanical and Industrial Engineering, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal. c Department of Mechanical Engineering, University of Sidi Bel Abbes, BP 89, Cité Ben M’hidi, 22000, Sidi Bel Abbes, Algeria.

* 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 © 2026 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 ICSI organizers 2452-3216 © 2026 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 ICSI organizers

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