The influence of fatigue on the stiffness and remaining static strength of self-piercing riveted aluminium joints

Li, Dezhi; Han, Lei; Thornton, Martin; Shergold, Mike; Williams, Geraint

doi:10.1016/j.matdes.2013.08.072

Cited by 44 publications

(34 citation statements)

References 20 publications

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“…Results from Han et al [92,93] also showed that sheets with different surface conditions would require different rivet setting forces and result in different joint strength and failure modes due to different friction behaviour at the interfaces. Later, Li et al [94,95] pointed out that the friction between the top and bottom sheets, around the tip of the punched hole in the top sheet, was very important for the static lap shear strength.…”

Section: Contributing Elements Of Static Strengthmentioning

confidence: 99%

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Self-piercing riveting-a review

Chrysanthou

Imran

et al. 2017

Int J Adv Manuf Technol

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238

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Self-piercing riveting (SPR) is a cold mechanical joining process used to join two or more sheets of materials by driving a rivet piercing through the top sheet or the top and middle sheets and subsequently lock into the bottom sheet under the guidance of a suitable die. SPR is currently the main joining method for aluminium and mixed-material lightweight automotive structures. SPR was originated half century ago, but it only had significant progress in the last 25 years due to the requirement of joining lightweight materials, such as aluminium alloy structures, aluminium-steel structures and other mixed-material structures, from the automotive industry. Compared with other conventional joining methods, SPR has many advantages including no pre-drilled holes required, no fume, no spark and low noise, no surface treatment required, ability to join multi-layer materials and mixed materials and ability to produce joints with high static and fatigue strengths. In this paper, research investigations that have been conducted on self-piercing riveting will be extensively reviewed. The current state and development of SPR process is reviewed and the influence of the key process parameters on joint quality is discussed. The mechanical properties of SPR joints, the corrosion behaviour of SPR joints, the distortion of SPR joints and the simulation of SPR process and joint performance are reviewed. Developing reliable simulation methods for SPR process and joint performance to reduce the need of physical testing has been identified as one of the main challenges.

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Section: Contributing Elements Of Static Strengthmentioning

confidence: 99%

“…Li et al [95] studied the influence of fatigue on the stiffness and the remaining static strength of the self-piercing riveted aluminium joints. For some specimens, fatigue tests were stopped after certain cycles, and the specimens were tested for remaining static strength.…”

Section: Fatigue Of Spr Jointsmentioning

confidence: 99%

Self-piercing riveting-a review

Chrysanthou

Imran

et al. 2017

Int J Adv Manuf Technol

Self Cite

238

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“…In this study, for first 11 stacks listed in Table 2, because only the bottom surface of the top sheet was modified, the main factor that would influence the lap shear strength would be related to location 3. Results from Li et al [6] pointed out that the friction force between the tip of the punched hole in the top sheet and the edge of the partially pierced hole in the bottom sheet was very important for static lap shear strength. Their results showed that fretting during fatigue increased friction force between the tip of the punched hole in the top sheet and the edge of the partially pierced hole in the bottom sheet, and as a result the remaining static lap shear strength of the specimens was increased.…”

Section: Influence Of Local Surface Texture On Static Lap Shear Strengthmentioning

confidence: 99%

“…As we know, friction between two surfaces is related with the surface conditions. To find out the influence of surface conditions and friction on SPR setting process and joint strength, some research had been conducted [4][5][6][7] . These research on the influence of surface conditions on SPR joint quality and performance have been reviewed by Li et al [1].…”

Section: Introductionmentioning

confidence: 99%

“…The results showed that the presence of a wax-based solid surface lubricant could delay the onset of fretting damage on the alloy surface, leading to extended fatigue life; the application of a PTFE insert at the interface between the riveted sheets eliminated or significantly reduced fretting damage, but led to a reduction in the fatigue life due to a different failure mode. Research from Li et al [6] showed that fretting during fatigue increased the surface roughness, which consequently increased the remaining static lap shear strength of the specimens due to the increased friction force between the tip of the punched hole in the top sheet and the edge of the partially pierced hole in the bottom sheet.…”

Section: Introductionmentioning

confidence: 99%

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Influence of local surface texture by tool impression on the self-piercing riveting process and the static lap shear strength

2017

Journal of Manufacturing Processes

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To increase fuel efficiency and reduce emission, aluminium alloys have been increasingly used in automotive body-in-white structures for lightweighting. Due to its advantages over some of the more traditional joining technologies, self-piercing riveting (SPR) has been widely used for these lightweight structures. Research has showed that friction is a very important factor that influences both the riveting process and joint strength for SPR, but these influences have not been fully understood. In this paper, an innovative method was used to modify the local surface of the top sheet around the rivet piercing location with different impression tools (the central pin, the small ring, the medium ring and the large ring) and garnet particles to study the influence of local frictions on rivet inserting process, joint features and static lap shear strength. The results showed that the local surface textures on the aluminium sheet did not have significant influence on the rivet inserting process based on displacement-force curve analysis. The local surface textures could slightly change the joint features, especially the rivet head height, but overall this influence was not significant. The lap shear tests showed that ring impressions with garnet particles and central pin impressions on the bottom surface of the top sheet increased the static lap shear strength of the SPR joints. The results confirmed that the critical location for local friction influence on the lap shear strength was around the rivet leg piercing location.

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The Effect of Setting Velocity on the Static and Fatigue Strengths of Self‐Piercing Riveted Joints for Automotive Applications

Han

Chrysanthou

et al. 2014

TMS 2014 Supplemental Proceedings

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The influence of fatigue on the stiffness and remaining static strength of self-piercing riveted aluminium joints

Cited by 44 publications

References 20 publications

Self-piercing riveting-a review

Self-piercing riveting-a review

Influence of local surface texture by tool impression on the self-piercing riveting process and the static lap shear strength

The Effect of Setting Velocity on the Static and Fatigue Strengths of Self‐Piercing Riveted Joints for Automotive Applications

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