Analysis of deformations and stresses in balanced and unbalanced adhesively bonded single-strap joints

Shahin, Khaled; Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬, Farid

doi:10.1016/j.compstruct.2006.09.014

Cited by 33 publications

(18 citation statements)

References 9 publications

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“…In the case of the joint with right adherends the strength requirements (25) and (26) If the gap at the adherends ends is small ( 2 / 3 h L  ) significant discrepancies will be registered between the results, because the analytical formulas become inaccurate. Especially, the values of the maximum deflection, of the bending moment at the inner end of the overlap ( ) and the maximum stresses in the adhesive are affected [7]. 0.2 mm and P = 145 MPa.…”

Section: Comparison Of Analytical and Numerical Resultsmentioning

confidence: 99%

“…A pre-dimensioning algorithm will be presented by using the calculus relations deduced in paper [7] for balanced single-strap joints with thin adhesive layer. The relations from the cited paper will be rewritten in a more convenient form for the design purposes.…”

Section: Preliminary Design Of Single-sided Bonded Joints Based On Anmentioning

confidence: 99%

“…Usually, to repair a locally damaged structure, the patch is used to bridge a crack or to cover over a hole. One of the objectives of paper [7] was to deny the statement that a single-strapped joint is less efficient than a single-lap joint.…”

Section: Introductionmentioning

confidence: 99%

“…In paper [7] the deformations of a typical unbalanced single-strapped joint were determined analytically and subsequently used to calculate the bending moments and the shear forces at the two ends of the overlap, that affect the peak stresses in the adhesive. In the case of a balanced single-strapped joint, closed-form solutions were obtained, but for an unbalanced joint the two differential equations are coupled and the solution can only be obtained numerically.…”

Section: Introductionmentioning

confidence: 99%

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Analytical and numerical study concerning the behaviour of single-sided bonded patch repairs

Sandu¹,

Sandu²

2011

INCAS BULLETIN

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Section: Comparison Of Analytical and Numerical Resultsmentioning

confidence: 99%

Section: Preliminary Design Of Single-sided Bonded Joints Based On Anmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analytical and numerical study concerning the behaviour of single-sided bonded patch repairs

Sandu¹,

Sandu²

2011

INCAS BULLETIN

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“…(19) is not limited to single-lap joints, but can be applied to any joint configuration, only the eccentricity factors k and k 0 need to be adjusted. Eccentricity factors for single-strap and stiffener-plate joint configurations can be found elsewhere (Shahin et al, 2008;Shahin and Taheri, 2007). For example, in the case of CLS specimens restrained against lateral deflections, the eccentricity factors k and k 0 are equal to unity and zero, respectively, and G T for this configuration is reduced to that in Eq.…”

Section: Lap Jointsmentioning

confidence: 99%

The strain energy release rates in adhesively bonded balanced and unbalanced specimens and lap joints

Shahin

Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

2008

International Journal of Solids and Structures

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a b s t r a c tAn analytical model is developed to determine the strain energy release rate in adhesive joints of various configurations such as the double-cantilever beam and single-lap joints. The model is based on asymptotic analysis of adhesive layer stresses and Irwin's crack closure integral. Closed-form solutions are presented for balanced and unbalanced joints under mode I, II and mixed-mode I/II that take into account the influence of the shear force on the adhesive stresses, and its influence on the strain energy release rate. The accuracy of the model is tested against the classical beam theory expressions for double-cantilever beam and end-notch flexure specimens. In fact, classical beam theory's expressions are found to be the lower bound of the proposed model solutions, and the two methods converge as the adhesive layer thickness decreases. Analysis of single-lap joints reveals the influence of edge shear forces on the total strain energy release rate, and more importantly on the ratio between modes I and II. Results from the proposed analytical model are in good agreement with finite element results and with analytical models found in the literature.

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Numerical Analysis on the Temperature and Thermal Stress Distribution in Adhesive Joints

Zhao

Cao

Guo

et al.

Advanced Design and Manufacture to Gain a Competitive Edge

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Adhesive joints experience not only mechanical loads but also thermal loads. The different mechanical and thermal properties of adhesive and adherend may cause complex thermal stresses. In this paper, finite element analysis method has been used to study the temperature distribution of the adhesively bonded single lap joint whose outer surfaces are assumed to be subject to air flows with different temperatures and velocities. Considering the precondition of geometrical nonlinear, the paper discussed the effects of the end condition, the thickness and the overlap length of adhesive on the thermal stress distribution in the adhesive single lap joint. Simualtion invetigations have been undertaken and the results can be used to predict the strength of adhesive joints and have the realistic guiding meaning with optimization design.

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Analysis of deformations and stresses in balanced and unbalanced adhesively bonded single-strap joints

Cited by 33 publications

References 9 publications

Analytical and numerical study concerning the behaviour of single-sided bonded patch repairs

Analytical and numerical study concerning the behaviour of single-sided bonded patch repairs

The strain energy release rates in adhesively bonded balanced and unbalanced specimens and lap joints

Numerical Analysis on the Temperature and Thermal Stress Distribution in Adhesive Joints

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