Analytical and experimental analysis of the shear strength of bolted saw-tooth joints

Abstract

For bolted joints, the influencing area of the bolt is usually considered to be the entire joint plane. Relevant studies have reported that the influencing area of the bolt ultimately becomes nearly circular, instead of extending to the entire joint plane, during shearing. To obtain the exact shear strength of the bolted joint, the equivalent shear area of the bolt (i.e. the influencing area of the bolt) was considered. Moreover, the influence coefficient m of the bolt, defined as the diameter ratio of the equivalent shear area to the bolt, was proposed to establish a modified model of the bolted joint shear strength. Via a comparison of the experimental and calculated results of the modified model, the value of m for saw-tooth joints with a single bolt was determined, and the modified model was verified.

Keywords:

• Bolt
• laboratory test
• saw-tooth joint
• theoretical model

Data availability statement

The data that support the findings of this study are available from the corresponding author, [Hang Lin], upon reasonable request.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This paper gets its funding from project (51774322) supported by ; Project (2018JJ2500) supported by Hunan Provincial Natural Science Foundation of China. The authors wish to acknowledge these supports.