Evaluation of the Mechanical Performance of Self-Piercing Rivets in Friction Stir Welded Structures
This paper presents the coupon performance data of friction stir welded tailor welded blanks (TWBs) joined to a monolithic aluminum sheet by self-piercing rivets (SPRs). Uniaxial tensile tests were performed to characterize the joint strength and the total energy absorption capability of the TWB/monolithic joint assemblies. Cyclic fatigue tests were also conducted to characterize the fatigue behavior and failure mechanisms of the jointed assemblies. It was found that the static and fatigue strength of the TWB/monolithic assembly was approximately 30 percent less in all loading configurations tested in comparison to a common monolithic sheet SPR assembly. The total energy absorbed by the TWB/monolithic sheet assemblies was also found to be 30 percent less than the monolithic sheet assemblies in cross tension loading. In lap shear loading, the total energy absorbed was comparable.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 965629
- Report Number(s):
- PNNL-SA-43820; VT0502020; TRN: US200920%%369
- Resource Relation:
- Conference: Advances in Welding and Friction Stir Welding for Automotive Applications: Society of Automotive Engineers 2005 World Congress, April 11-14, 2005, Detroit, Michigan, SP-1959:153-158
- Country of Publication:
- United States
- Language:
- English
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