Forming Quality and Fatigue Behavior of Self‐Piercing Riveted Joints of DP590 and AA6061 Plates

Jia, Yinglian; Huang, Zhichao; Zhong, Fan

doi:10.1155/2021/4381544

Cited by 14 publications

(3 citation statements)

References 23 publications

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“…According to the research of scholars, as well as the authors’ previous works, riveting parameters, such as sheet thickness and sheet lap sequence, have great influence on the performance of self-piercing riveting joints [ 23 , 24 , 25 ]. When different metal plates are connected, the more plastic plates should be placed on the lower layer; at the same time, the rivet height should not exceed the total thickness of the plate by 3 mm.…”

Section: Methodsmentioning

confidence: 99%

Insight of Salt Spray Corrosion on Mechanical Properties of TA1-Al5052 Self-Piercing Riveted Joint

et al. 2022

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Self-piercing riveted (SPR) joints in automobiles inevitably suffer from corrosion damage and performance reduction. In this work, the influence of salt spray corrosion on the mechanical properties of TA1-Al5052 alloy SPR joints was studied. The TA1-5052 SPR joints were prepared and salt spray tests were carried out for different durations. The static and fatigue strengths of the joints after salt spray corrosion were tested to analyze the effect of salt spray duration on the performance of the joints. The results show that the joints’ static strength and fatigue strength decrease with prolonged salt spray time. The salt spray duration affects the joint’s tensile failure mode. The tensile failure without corrosion and with a short salt spray time is the fracture failure of the lower aluminum sheet, and the tensile failure of the joints after a long time of salt spray corrosion is the failure of the rivets. The fatigue failure form of the SPR joint is the formation of fatigue cracks in the lower aluminum sheet, and salt spray time has little effect on the fatigue failure form. Salt spray corrosion can promote the initiation and propagation of fatigue cracks. The fatigue crack initiation area is located at the boundary between the lower aluminum sheet and the rivet leg. The initiation of cracks originates from the wear zones among the sheet metal, rivets, and salt spray particles.

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Section: Methodsmentioning

confidence: 99%

Insight of Salt Spray Corrosion on Mechanical Properties of TA1-Al5052 Self-Piercing Riveted Joint

et al. 2022

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“…With the development of automobile lightweight technology, the mixing of steel/aluminum and other multi-materials for the automobile body structures has already been the unavoidable tendency of automobile design technology development [4,5]. Because of the advantages of no heat input and noise pollution, and easy realization of the heterogeneous material connection, self-piercing riveting is widely used in the connection of automobile hybrid body structures [6][7][8]. The body of the domestic automobile may be subjected to various types of external loads during its service life, and it is necessary to study the mechanics of the SPR joints at different operating conditions, especially the impact destructions suffered by the SPR joints.…”

Section: Introductionmentioning

confidence: 99%

Low-Speed Impact and Residual Mechanical Performance of the BR1200HS/AA6082 Self-Piercing Riveted Joints

Jia,

Huang,

Jiang

2023

Metals

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To investigate the low-speed impact response of the BR1200HS steel and AA6082 aluminum alloy self-piercing riveted (SPR) joint, low-speed impact tests with impact energies of 2.5 J, 5.0 J, 7.5 J, 10.0 J, 12.5 J, 15.0 J, 20.0 J, and 30.0 J were conducted utilizing a drop hammer impact tester. The results show that with the increased impact energy, the visual breakages of the SPR joints become more severe. The maximum impact energy the joints can sustain ranges from 10.0 J to 12.5 J. When the impact energy is less than 12.5 J, the contact force/energy–time curves show similar variations. Moreover, as the impact energy increases, total uptake energy value (Et), maximum uptake energy value (Ef), and maximum contact force (Fm) of the joints increase gradually. The low-speed impact energy has little effect on the maximum static tensile force of the impacted joints. However, the residual energy values decrease with the increase in impact energy. The tensile failure form of the joints is the pulling out of the rivets from the lower plates, and the low-speed impacts have no significant effect on the tensile failure form of the joints.

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“…Compared with conventional bolt-nut connection processes, self-piercing riveting (SPR) has the special advantages of no predrilling, fast forming speed, reliable connection, and high fatigue strength [9]. Therefore, the SPR is broadly used in the connections of different materials, especially for the connections between ultra-high-strength steel and aluminum alloys [10,11].…”

Section: Introductionmentioning

confidence: 99%

Effect of low-velocity impact on mechanical property and fatigue life of DP590/AA6061 self-piercing riveted joints

Zhao

Huang

Jiang

2022

Mater. Res. Express

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The low-velocity impact behaviors of DP590/AA6061 self-piercing riveting (SPR) joints are studied at the impact energies of 5 J, 10 J, 20 J, 30 J, and room temperature (25℃). The lap shear and fatigue tests, and the cross-sectional microscopies of joints are used to assess the mechanical property evolutions of the joints after low-velocity impact. The results show that the absorbed impact energies of SPR joints reach the critical value at an impact energy of 30 J, the exceeded impact energy causes crack failures in the sheets and decreases the interlocking performance of the joints. The static property and the absorbed energy of the SPR joints are reduced by 16% and 36% when the joints are impacted at 30 J, respectively. The low-velocity impacts do not change the failure forms of the joints, but significantly reduce the mechanical interlocking properties of the joints. The fatigue lives of the SPR joints are reduced due to low-velocity impact, and the impacted joints are more sensitive to cyclic loadings.

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Forming Quality and Fatigue Behavior of Self‐Piercing Riveted Joints of DP590 and AA6061 Plates

Cited by 14 publications

References 23 publications

Insight of Salt Spray Corrosion on Mechanical Properties of TA1-Al5052 Self-Piercing Riveted Joint

Insight of Salt Spray Corrosion on Mechanical Properties of TA1-Al5052 Self-Piercing Riveted Joint

Low-Speed Impact and Residual Mechanical Performance of the BR1200HS/AA6082 Self-Piercing Riveted Joints

Effect of low-velocity impact on mechanical property and fatigue life of DP590/AA6061 self-piercing riveted joints

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