Mechanical and fatigue properties of self-piercing riveted joints in high-strength steel and aluminium alloy

Zhang, Chunyu; Gou, Rui-bin; Yu, Min; Yu, Qiao; Fang, Song

doi:10.1016/s1006-706x(17)30030-4

Cited by 24 publications

(7 citation statements)

References 13 publications

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“…Kam et al 15) illustrated the feasibility of SPR joints between vibration-damping steel (consisting of two steel sheets separated by a viscoelastic adhesive polymer layer) and an aluminum alloy. Zhang et al 16) observed that the strength of the steel significantly influenced the strength of steel/aluminum SPR joints. Abe et al 8) presented that arranging steel as the top sheet and aluminum alloy as the bottom sheet showed better joinability compared to the opposite orientation.…”

Section: Introductionmentioning

confidence: 99%

Effect of Top Sheet Materials on Joint Performance of Self-Piercing Riveting

Karim

Murugan

Bae³

et al. 2022

J Weld Join

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Three types of self-piercing riveting (SPR) joints, i.e., steel/aluminum, carbon fiber reinforced polymer (CFRP)/ aluminum, and aluminum/aluminum, were constructed using three different top sheet materials with the same aluminum alloy as the bottom sheet. The effects of the top sheet material on the joint quality and mechanical behavior were evaluated. The top sheet materials’ characteristics dominate the rivet piercing process and the consequent interlock distance. The high-strength steel top sheet requires a comparatively higher rivet setting force and induces early flaring of the rivet tail, resulting in a larger interlock distance. Though the CFRP needs the highest rivet setting force to penetrate the rivet through the CFRP fibers, the CFRP/aluminum joint exhibits the smallest interlock distance because of the SPR process-induced damages to the CFRP and subsequently less flaring of the rivet tail. In strength tests, the damaged CFRP sheet resulted in rivet head pullout of the CFRP/aluminum joints, which exhibited the lowest lap-shear and cross-tension strengths. In contrast, the steel/aluminum joints demonstrated the highest strengths because of their comparatively larger interlock distances. In addition to the experimental analysis, simulations revealed the rivet penetration and flaring mechanisms with various top sheet materials, and their respective joint quality and strengths.

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Section: Introductionmentioning

confidence: 99%

Effect of Top Sheet Materials on Joint Performance of Self-Piercing Riveting

Karim

Murugan

Bae³

et al. 2022

J Weld Join

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“…In particular, to combine steel and Al alloys in the car body, fastening with a rivet (self-piercing riveting (SPR)) [ 13 , 14 ], laser welding [ 15 , 16 ] and RSW have been extensively researched and developed. In the SPR method, dissimilar sheet materials are joined by mechanical interlock using rivets.…”

Section: Introductionmentioning

confidence: 99%

“…Various process improvements have also been conducted to improve the quality of the SPR joint [ 13 , 18 ]. Moreover, the mechanical properties of the SPR joints with high-strength steel and an Al alloy, and the effect of sheet strength and sheet thickness on those properties were reported [ 14 ]. The SPR joint reportedly shows relatively high tensile shear strength [ 14 ] and excellent fatigue properties [ 3 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the mechanical properties of the SPR joints with high-strength steel and an Al alloy, and the effect of sheet strength and sheet thickness on those properties were reported [ 14 ]. The SPR joint reportedly shows relatively high tensile shear strength [ 14 ] and excellent fatigue properties [ 3 , 14 ]. However, the SPR method has a disadvantage in that the weight and cost of rivets increase with an increase in the number of joints.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Fatigue Behaviors of Dissimilar A6061/Galvannealed Steel Joints Fabricated by Friction Stir Spot Welding

et al. 2021

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The microstructures, tensile shear properties, and tensile shear fatigue properties of dissimilar A6061/Galvannealed steel joints fabricated by friction stir spot welding (FSSW) were investigated. Fe4Al13 phases form as the intermetallic compound (IMC) layer at the joint interface between the A6061 matrix and the galvannealed layer consisting of FeZn7, Fe, and Zn. At the edge of the joint, the stirred layer in which the A6061 matrix and the galvannealed layer are stirred also forms. Moreover, the solidified part of the residual melt discharged from the joint area forms at the outer peripheries of the joint. In this study, FSSW was conducted for two total welding durations: 9 and 10 s. Although the thickness of the remaining A6061 sheet in the welded area decreased with an increase in the welding time, the effects of the total welding time on tensile shear and tensile shear fatigue properties were negligible. A fatigue fracture occurred in the A6061 matrix and at the joint interface at the high cycle fatigue region and the low cycle fatigue region, respectively. In the case of the interfacial fracture, the crack was generated in the solidified part of the residual melt or at the interface between the solidified part and the stirred layer.

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“…Additionally, several researchers [17][18][19][20] have demonstrated that with the increase of strength and thickness of base metal, the fatigue performance of SPR joints is obviously improved. Besides, some scholars [21][22][23][24] performed fatigue tests on the mixed-metal SPR joints.…”

mentioning

confidence: 99%

Experimental study on high‐cycle fatigue performance of cold‐rolled steel sheet connections using self‐tapping screws and blind rivets

Wang,

2024

Fatigue Fract Eng Mat Struct

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To provide more suggestions for the anti‐fatigue design of cold‐formed steel, a series of high‐cycle fatigue tests are carried out on cold‐rolled steel sheets connected by self‐tapping screws and blind rivets in this paper. Subsequently, fatigue failure mode, fatigue strength, and fatigue damage are analyzed in detail. The test results show that all effective data points are below the S‐N curve of screws in the code. Meanwhile, the fatigue limit values of the fitted curves with 95% survival probability fall within the range of 0.3 to 0.67 times the specified value. Besides, the fatigue damage expansion rate of cold‐rolled steel sheets is less than the standard value. Through further discussion, it is noticed that metal grade has little influence on the fatigue performance, while thickness has a significantly positive influence on the shear resistance and fatigue performance. Moreover, the fatigue performance of the two connection types appears to be similar.

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Mechanical and fatigue properties of self-piercing riveted joints in high-strength steel and aluminium alloy

Cited by 24 publications

References 13 publications

Effect of Top Sheet Materials on Joint Performance of Self-Piercing Riveting

Effect of Top Sheet Materials on Joint Performance of Self-Piercing Riveting

Microstructure and Fatigue Behaviors of Dissimilar A6061/Galvannealed Steel Joints Fabricated by Friction Stir Spot Welding

Experimental study on high‐cycle fatigue performance of cold‐rolled steel sheet connections using self‐tapping screws and blind rivets

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