On adhesively bonded stepped-scarf joint: an analytical model and its validation

Wang, Suian; Xie, Zhihui; Li, Xiang

doi:10.1080/15376494.2019.1614699

Cited by 14 publications

(12 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both finite element analysis and the proposed model suggest various peel stresses in the TA/BA interfaces unlike, most current viscoelastic solutions that disregard the peel stress or only predict one value for both interfaces. [18][19][20] Comparison between single stepped-lap and single-lap model In this section, the stress distribution in the single stepped-lap and the single-lap adhesive joints is compared under axial load. For this purpose, the shear stress in the adhesive mid-plane and the peel stresses in the TA and BA interfaces in both models (single stepped-lap and single-lap) with similar material and dimensions are calculated using the 3PFVF model and relevant results at t = 0 are shown in Figures 11-13.…”

Section: Verification Using Finite Element Methodsmentioning

confidence: 99%

“…w a (x) is the vertical deformation of the mid-plane of the adhesive layer. According to the requirements for applying equation (20), the average transverse strain, normal strain, and normal stress within the adhesive layer are given by:…”

Section: Governing Differential Equationmentioning

confidence: 99%

“…Where ϵ x1, ϵ x2, ϵ z1, ϵ z2, σ z1 , and σ z1 indicate the longitudinal strain, normal strain, and peel stress in the interface between the adhesive and the right and left adherends, respectively. When equation ( 23) is substituted into equation (20), the following relation is achieved:…”

Section: Governing Differential Equationmentioning

confidence: 99%

“…19 They investigated the shear stress distributions in both sections of the adhesive layer separated by the void along the overlap length using the classical elasticity theory. A modified analytical model has been proposed by Wang et al 20 with a closed-form solution to examine the strength, stiffness, and failure mode of the adhesively bonded stepped-scarf joints under unidirectional stresses, concerning the shear deformation in the composite laminated plates, the nonlinear behavior of adhesive and ignoring peel stress. The stepped lap joints have been experimentally and numerically investigated in many works from different viewpoints, [21][22][23][24] for example, the failure mechanism for stepped-bonding structures subjected to static and dynamic loadings.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Stress analysis of adhesively-bonded single stepped-lap joints based on three-parameter fractional viscoelastic foundation model

Veisytabar

Reza

Shekari

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

This paper aims to develop a viscoelastic analytical model for adhesively bonded single stepped-lap joints subjected to tensile loading. The adherends are aluminum alloy A6063 and modeled as Timoshenko elastic beams and the adhesive is epoxy type B. A three-parameter fractional viscoelastic foundation (3PFVF) model is proposed to express the governing stresses in the joint and the fractional Zener model is used to model the viscoelastic behavior of the adhesive layer. The proposed 3PFVF model makes it possible to have different peel stresses between the two interfaces of adhesive and adherends. The governing differential equations are derived in the Laplace domain, and then solved and transformed simultaneously in the time domain using the Gaver-Stehfest inverse Laplace transform method. The finite element simulation with ANSYS is applied to validate the proposed method. The results show that a simple fractional viscoelastic model, which has a short differential equation, offers the same results as the classical viscoelastic models, which have higher and more complex differential equations. Moreover, the results show that the maximum shear and peel stresses in the single stepped-lap joints are about 20% less than single-lap joints.

show abstract

Section: Verification Using Finite Element Methodsmentioning

confidence: 99%

Section: Governing Differential Equationmentioning

confidence: 99%

Section: Governing Differential Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Stress analysis of adhesively-bonded single stepped-lap joints based on three-parameter fractional viscoelastic foundation model

Veisytabar

Reza

Shekari

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

show abstract

“…Literature can sometimes be confusing because steppedscarf is employed to describe stepped repairs as well. [12,[25][26].…”

Section: Specimens Typologymentioning

confidence: 99%

Bonded flush repairs for aerospace composite structures: A review on modelling strategies and application to repairs optimization, reliability and durability

Orsatelli

Paroissien

Lachaud

et al. 2023

Composite Structures

View full text Add to dashboard Cite

A parametric study on patch repaired quasi‐isotropic laminate in high‐velocity impact environment: Experimental and numerical investigation

Sahoo,

Chennamsetti,

Arockiarajan

2024

Polymer Composites

View full text Add to dashboard Cite

In this work, the post‐repair behavior of a quasi‐isotropic laminate was studied in a high‐velocity impact environment. The composite laminates were repaired using an external bonded patch repair procedure. Impact tests were performed to understand the effect of patch size and the result of filling the damaged region with a neat epoxy and hardener mixture. Two different size square patches, such as 30 and 50 mm, were used to analyze the effect of patch size. A continuum damage mechanics‐based model was developed and incorporated into a finite element model interface to estimate the optimum patch size and patch stacking sequence for the impact environment. In the finite element model, the intralaminar failure criteria were implemented using the ABAQUS‐VUMAT user subroutine, and the interlaminar failure criteria were implemented using the inbuilt cohesive contact properties. The 30 mm patch with resin filled in the damaged region performed better than the other combination patches. Also, placing 45° plies toward the outer layer of the patches showed lower damage compared to the patches in which 45° plies were placed at the inner surfaces.Highlights Post‐repair impact behavior of repaired laminates was examined. Impact of patch dimension and resin filling in the damaged area was analyzed. A 3‐D finite element model was developed to optimize patch parameters. Continuum damage mechanics model has been incorporated with VUMAT subroutine. Interface between lamina has been modeled using cohesive contact.

show abstract

On adhesively bonded stepped-scarf joint: an analytical model and its validation

Cited by 14 publications

References 20 publications

Stress analysis of adhesively-bonded single stepped-lap joints based on three-parameter fractional viscoelastic foundation model

Stress analysis of adhesively-bonded single stepped-lap joints based on three-parameter fractional viscoelastic foundation model

Bonded flush repairs for aerospace composite structures: A review on modelling strategies and application to repairs optimization, reliability and durability

A parametric study on patch repaired quasi‐isotropic laminate in high‐velocity impact environment: Experimental and numerical investigation

Contact Info

Product

Resources

About