Influence of edge distance on quality and static behaviour of self-piercing riveted aluminium joints

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

doi:10.1016/j.matdes.2011.07.046

Cited by 60 publications

(33 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results were also obtained on RSW high strength steel DP600 by Yang et al [4] through an experiment study using the same standards as for Zhou et al However, for SPR, no results on the influence of specimen dimensions have been published. In the previous paper by the authors, the influence of the distance between rivet centre and sheet edge (edge distance) on lap shear and coach-peel static strengths was studied [5], and in the current paper, the influence of edge distance on lap shear and coach-peel fatigue strengths is reported. The results obtained can be used to optimise structure design with respect to flange distance and help to further reduce the vehicle weight.…”

Section: Introductionmentioning

confidence: 86%

“…For the stack and joints studied in this paper, during static tests, specimens failed by rivets being pulled out from either bottom or top sheet or simultaneously from both sheets [5]; however, during fatigue tests, because the maximum loads applied were not enough to pull rivets out, and the substrates (top and bottom sheet materials) were continuously subjected to cyclic bending, all specimens failed in substrate sheet materials. Table 4 shows the failure modes of specimens with different edge distances and at different load amplitudes.…”

Section: Failure Modesmentioning

confidence: 99%

See 1 more Smart Citation

Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints

Han

Thornton

et al. 2012

Materials Science and Engineering: A

View full text Add to dashboard Cite

a b s t r a c tSelf-piercing riveting (SPR) is one of the main joining methods for lightweight aluminium automotive body structures due to its advantages. In order to further optimise the structure design and reduce the weight but without compromising strength, reduction of redundant materials in the joint flange area can be considered. For this reason, the influence of rivet to sheet edge distance on the fatigue strengths of self-piercing riveted joints was studied. Five edge distances, 5 mm, 6 mm, 8 mm, 11.5 mm and 14.5 mm, were considered. The results showed that the SPR joints studied in this research had high fatigue resistance and all specimens failed in sheet material along joint buttons or next to rivet heads. For lap shear fatigue tests, specimens failed in the bottom sheet at low load amplitudes and in the top sheet at high load amplitudes except for specimens with very short edge distance of 5 and 6 mm; whereas, for coach-peel fatigue tests, all specimens failed in the top sheet. For both lap shear and coachpeel fatigue tests, specimens with an edge distance of 11.5 mm had the best fatigue resistance. It was found that for coach-peel fatigue, length of crack developing path before specimens lost their strengths was the main factor that determined the fatigue life of different specimens; for lap shear fatigue, the level of stress concentration and subsequent crack initiation time was the main factor that determined the fatigue life.

show abstract

Section: Introductionmentioning

confidence: 86%

Section: Failure Modesmentioning

confidence: 99%

Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints

Han

Thornton

et al. 2012

Materials Science and Engineering: A

View full text Add to dashboard Cite

show abstract

“…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%

Self-piercing riveting-a review

Chrysanthou

Imran

et al. 2017

Int J Adv Manuf Technol

238

View full text Add to dashboard Cite

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.

show abstract

“…4;2017 edge distances, affects the joint formation significantly. For self-piercing riveting (SPR), (Li et al, 2012) already shown the significance of the edge distance. This chapter depicts the results of quasistatic testing the two configurations under shear load using single-lap shear load specimens and tensile load using cross tension test specimens.…”

Section: Insights Inside the Process Via Online-monitoringmentioning

confidence: 99%

Specimen's Geometry Related Influences on Load-Bearing Capacity of Joining Aluminium and UHSS by Innovative Shear-Clinching

Hörhold¹,

Mûller²,

Merklein³

et al. 2017

JMSR

View full text Add to dashboard Cite

Economic conditions as well as comfort and safety-related requirements lead to lightweight design especially in automotive body-in-white production processes. The consequential multi-material mix limits the reliability of conventional thermal joining technologies. Innovative mechanical joining technologies need to be established. Following the lightweight-design requirements, next step for weight-reduction would be the renunciation of additional elements. Clinching technologies support this idea by creating a form-and force-fitting joint, but are limited to the formability of the joining partners. Joining by forming without additional elements even of hot formed ultra-high-strength manganese steels and ductile aluminium can be realised by shear-clinching. A precisely coordinated tool setup initialises a crack in the die-sided material with limited formability without harming the punch-sided ductile aluminium. This paper presents current and detailed investigations of the influences of mechanical loads on strength capacity of multi-material joints using shear-clinching technologies. The results clearly show the promising potential and challenges of this innovative single-step joining technology for multi-material mixes.

show abstract

Influence of edge distance on quality and static behaviour of self-piercing riveted aluminium joints

Cited by 60 publications

References 13 publications

Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints

Influence of rivet to sheet edge distance on fatigue strength of self-piercing riveted aluminium joints

Self-piercing riveting-a review

Specimen's Geometry Related Influences on Load-Bearing Capacity of Joining Aluminium and UHSS by Innovative Shear-Clinching

Contact Info

Product

Resources

About