Mechanic of Advanced and Smart Materials
Quarterly

Statistical-Numerical Analysis of the Geometric and Mechanical Effects of Adhesive on the Strength of Single-Edge Joints Under Tensile Loading

Document Type : Original Article

Authors

Seyed Mahyar Mir Mohammad Hossein Ahari
Jafar Eskandari Jam
Mohammad Hossein Alaei
Hossein Momeni
Pooya Pirali

Malek Ashtar University of Technology

10.61186/masm.4.4.597.
Abstract
In various industries, structures are made by connecting parts with similar or dissimilar materials. Among these, adhesive bonding is one of the methods for permanently joining structures and creating a cohesive assembly.The single-lap adhesive joint is one of the most commonly used joints in various industries, and its different aspects have been examined in previous studies. However, no research has simultaneously investigated the effects of all mechanical properties of the adhesive and its geometry.This study aims to examine the impact of both mechanical and geometric properties of adhesives using Abaqus software and numerical simulations, which have been validated against numerical and experimental results from a reference paper. For the Statistical Analysis, Minitab software and the Taguchi method were employed, examining eight parameters including elastic and shear modulus, tensile and shear strength, mode I and II fracture toughness of the adhesive, adhesive thickness, and the elastic modulus of the substrate. The results showed that with the increase in mode I fracture toughness, increase in mode II fracture toughness, increase in shear strength, increase in tensile strength and increase in the elastic modulus of the substrate, the strength of the joint increases. Among the adhesive properties, the mode I fracture toughness has the highest effect on the joint strength with a contribution percentage of 28.28. Following that, tensile strength has a contribution percentage of 20.28, mode II fracture toughness has 13.24, shear strength has 8.14, and the elastic modulus of the substrate has a contribution percentage of 4.37 in the joint strength.

Keywords

Single-lap joint
Numerical simulation
Statistical Analysis
Mechanical properties of adhesive
Joint strength
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Mechanic of Advanced and Smart Materials
Volume 4, Issue 4
Winter 2025
Pages 597-622

  • Receive Date 31 December 2024
  • Revise Date 02 March 2025
  • Accept Date 15 March 2025

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