Optimizing support patch geometries in adhesively bonded single lap joints

Çalik, Ahmet (author)

In recent years, the preference for adhesive bonding over traditional methods like bolted or riveted connections has garnered the attention of researchers. This study employs finite element analysis to optimize the geometry and placement of support patches in adhesively bonded single lap joints, significantly reducing stress concentrations and enhancing joint strength. Initially, a comprehensive finite element analysis was conducted to numerically evaluate the influence of different support patch parameters and their positions on the strength of single lap joints (SLJs). To validate the finite element analyses (FEA), comparisons were made with existing studies in the literature and analytical solutions. The numerical results in this study reveal that the dimensions and placement of the support patch can potentially reduce the load and stress distribution in different regions of the adhesive joint, which could increase its strength.

• Language: English
• Keywords: adhesive bonding, stress optimization, support patch geometry, finite element analysis
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2025
• Number of pages: 11 str.
• Numbering: Vol. 71, no. 3/4
• PID: 20.500.12556/RUL-172579
• UDC: 621
• ISSN on article: 2536-3948
• DOI: 10.5545/sv-jme.2025.1265
• COBISS.SI-ID: 248194051
• Publication date in RUL: 09.09.2025

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Fakulteta za strojništvo
• ISSN: 2536-3948
• COBISS.SI-ID: 294943232

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian

Abstract

V zadnjih letih raziskovalci posvečajo vse več pozornosti uporabi lepljenih spojev v primerjavi s tradicionalnimi metodami, kot so vijačenje ali kovičenje. V tej študiji je uporabljena analiza s pomočjo metode končnih elementov za optimizacijo geometrije in namestitve podpornih ojačitev v lepljenih enojnih prekrovnih spojih, s čimer je možno občutno zmanjšati koncentracije napetosti in izboljšati trdnost spojev. Izvedena je obsežna numerična analiza z metodo končnih elementov, v kateri je preučen vpliv različnih parametrov podpornih ojačitev in njihove lege na trdnost enojnih prekrovnih spojev. Numerični rezultati so validirani s primerjavo z obstoječimi raziskavami iz literature ter analitičnimi rešitvami. Rezultati te raziskave so pokazali, da lahko ustrezna izbira dimenzij in položaja podpornih ojačitev učinkovito zmanjša obremenitve in izboljša porazdelitev napetosti v različnih območjih lepljenega spoja, kar bistveno poveča njegovo trdnost.

• Keywords: lepljeni spoji, optimizacija napetosti, geometrija podpornih ojačitev, metoda končnih elementov