SUN Yuyin,FENG Jiaming,JIN Wanjun,et al. Study on tensile strength prediction and test validation of blind bolted rivets with large flange[J]. Journal of Mechanical Strength,2025,47(9):174-181.
SUN Yuyin,FENG Jiaming,JIN Wanjun,et al. Study on tensile strength prediction and test validation of blind bolted rivets with large flange[J]. Journal of Mechanical Strength,2025,47(9):174-181. DOI: DOI:10.16579/j.issn.1001.9669.2025.09.016.
Study on tensile strength prediction and test validation of blind bolted rivets with large flange
Blind bolted rivets with large flange are widely used as standard fasteners for single-side connection in the aerospace industry
and their minimum tensile load is one of the clearly specified mechanical properties. However
the current method for calculating the tensile strength of blind bolted rivets with large flanges is not yet fully developed. In order to improve the forward design process of blind bolted rivets with large flanges and predict their tensile strength
the failure modes during the tensile process were investigated. First
mechanical analysis reveals three failure modes due to stress concentration: the breakage of the forming sleeve
breakage of the head
and indentation of the nut sleeve. Then
a finite element simulation was used to propose a prediction method for the tensile strength of blind rivet nuts with large flanges
which helps obtain the failure modes and predict the tensile strength. Finally
a hydraulic testing system was used to conduct tensile tests on a specific model of blind bolted rivets with a large flange
the specific failure modes and force-displacement curves are obtained. The accuracy of the proposed prediction method is verified by the test result. This study provides a reference for improving the connection strength of blind bolted rivets with large flanges and enables the prediction of tensile strength in the forward design process.
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