Effect of adhesive layer properties on the shear strength of single-lap structures of dissimilar materials based on the cohesive zone model

Huang, Jiwei; Zeng, Jie; Bai, Yufang; Cheng, Zhuming; Wang, Yong; Zhao, Qidi; Liang, Dakai

doi:10.1007/s12206-020-1212-2

Cited by 7 publications

(3 citation statements)

References 39 publications

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“…Indeed, the increase in the thickness beyond the threshold reduced the load-bearing capacity slightly (by 1.1% and 2.2% corresponding to the thicknesses of 0.5 mm and 0.6 mm, respectively, in comparison to the joint with a thickness of 0.4 mm). The phenomenon corroborates with the observation made by other researchers 45 who demonstrated optimal adhesive thickness of 0.5 mm of their investigated SLJ, beyond which the load-bearing capacity of SLJ was decreased. Moreover, the maximum shear strength in the joint with the optimal adhesive thickness is 5.21 MPa, revealing a 56.7% improvement in comparison to the base group of specimens (e.g., the SLJ with 0.1 mm thickness).…”

Section: Resultssupporting

confidence: 92%

Strength and failure mechanism of single-lap magnesium-basalt fiber metal laminate adhesively bonded joints: Experimental and numerical assessments

Mottaghian

Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

2022

Journal of Composite Materials

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A quick literature search reveals the significant lack of data and information concerning magnesium-to-magnesium bonded joints as well as fiber-metal laminates (FMLs) made with magnesium alloys. Therefore, a systematic series of experimental and numerical investigations are carried out to assess the performance of single-lap joints mating FML adherends. The primary goal is to better understand the effects of geometrical and material parameters that influence the performance of magnesium-to-magnesium joints. The FML adherends used in this study consist of basalt natural fiber-epoxy laminate sandwiched in between thin sheets of magnesium alloys, which were subsequently adhesively bonded using a room-cured epoxy resin. The effects of two types of surface treatments, namely, “sandblasting” and “sandblasting with resin coating” on the bond strength and failure mechanism of the adhesively bonded joints (ABJs) are investigated. A 3D numerical model developed to simulate the response of the joints subjected to quasi-static lap-shear tests. This model, which accounts for the material and geometrical nonlinearity in the joints, is used to perform a parametric analysis for establishing the optimal overlap bond length. The distributions of the shear and peel stresses in the overlap region and the effects of adhesive thickness on the performance of the joints are systematically examined. The comparison of the experimental data and numerical results confirms the robustness and cost-effectiveness of the numerical model in predicting the response of such single-lap ABJs.

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Section: Resultssupporting

confidence: 92%

Strength and failure mechanism of single-lap magnesium-basalt fiber metal laminate adhesively bonded joints: Experimental and numerical assessments

Mottaghian

Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

2022

Journal of Composite Materials

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“…[1,2] Adhesive bonding is a popular technique for joining dissimilar materials that further comes with the advantage of low-stress concentration in parent materials compared to traditional joining techniques (welding, riveting and bolting). The strain distribution in an adhesively bonded structure mainly relates to the adhesive layer thickness, [3][4][5][6][7][8][9][10][11] overlap length, [12,13] global geometry, [14][15][16][17][18] adherend thickness, [19] type of adhesive and adherend, [6,9,20,21] surface treatment of adherend [22][23][24][25][26] and bond quality. The strain is usually higher at the edges of the joint due to stress concentration.…”

Section: Introductionmentioning

confidence: 99%

Experimental deformation analysis of an adhesively bonded multi‐material joint for marine applications

Jaiswal

Kumar

Juwet³

et al. 2023

Strain

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The strength and deformation of full-scale adhesively bonded multi-material joints is studied in this paper. Four joints with a thick layer of methyl methacrylate adhesive (MMA) have been manufactured in shipyard conditions. In two specimens, cracks have been introduced at steel-adhesive and compositeadhesive interfaces. One cracked and one un-cracked specimen were subjected to quasi-static tensile testing; the two remaining specimens were stepwise loaded/unloaded with increasing load until failure. The strain in the adhesive layers was measured with digital image correlation (DIC). This showed a predominant shear deformation and dissimilar shear strain patterns for different bond lines. Fibre Bragg (FBG) sensors were used to monitor strains at steel and composite constituents and to detect the onset and evolution of damage in the un-cracked specimen. Strains measured by FBG sensors correspond well with DIC results at nearby regions. All specimens failed by delamination of the composite panel near the composite-adhesive interface.

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“…Robust and compact structures are the key characteristics demanded for all modern engineering products [ 1 , 2 , 3 , 4 ]. The realization of both robustness and compactness in a component is possible only if it is made from multiple materials [ 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. Joints of dissimilar materials give different combinations of mechanical and metallurgical characteristics in a product.…”

Section: Introduction—joining Of Copper To Stainless Steel Bimetallic...mentioning

confidence: 99%

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

et al. 2022

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Joining immiscible materials such as copper and stainless steel together is a significant concern due to distinct mechanical and metallurgical properties across the joint line, such as melting points, the coefficient of linear thermal expansion, and thermal conductivity. The joint properties of copper to stainless steel welds are in great demand for various mechanical components of the international thermonuclear experimental reactor, ultra-high vacuum system, plan wave linear-accelerator or linac structure, and heat exchanger. These dissimilar-metals joints offer excellent flexibility in design and production, leading to a robust structure for many cutting-edge applications. Hence, the present article reviews the copper to stainless steel joining mechanism under different solid-state processing conditions. The present understanding says that defect-free strong joints between the dissimilar metals are systematically possible. Apart from this understanding, the authors have identified and highlighted the gaps in the research exploration to date. Moreover, a sustainable methodology to achieve a desirable weld of copper to stainless steel depends on favorable processing conditions.

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Effect of adhesive layer properties on the shear strength of single-lap structures of dissimilar materials based on the cohesive zone model

Cited by 7 publications

References 39 publications

Strength and failure mechanism of single-lap magnesium-basalt fiber metal laminate adhesively bonded joints: Experimental and numerical assessments

Strength and failure mechanism of single-lap magnesium-basalt fiber metal laminate adhesively bonded joints: Experimental and numerical assessments

Experimental deformation analysis of an adhesively bonded multi‐material joint for marine applications

The Joining of Copper to Stainless Steel by Solid-State Welding Processes: A Review

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