Directionality Effect on Strength of Partial-Joint-Penetration Groove Weld Joints
Publication: Journal of Structural Engineering
Volume 146, Issue 4
Abstract
Partial-joint-penetration (PJP) groove weld is commonly used as an alternative to fillet weld when high-strength joints are needed. The majority of previous research on the effect of loading angle on the weld strength focuses on fillet welds, but not PJP welds. Both US specifications and Japan recommendations use a directional strength increase factor to determine the strength of fillet welds. However, these factors do not apply to PJP welds; also, US specifications, Japan recommendations, and European standards give different design criteria for PJP welds loaded with 90°. This paper presents results from a study that investigated the mechanical behavior of PJP welds under different loading angles. Results obtained from both finite-element analysis and experiments indicate that current US design practice is conservative when the directionality effect is ignored in calculating the strength of PJP welds.
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Acknowledgments
The authors are grateful for the support of the Steel Structure Research and Education Promotion Program provided by the Japan Iron and Steel Federation. The Japan Student Services Organization (JASSO) scholarship and the financial support from the China Scholarship Council (Grant 201807000074) provided to Pengjun Luo are also gratefully acknowledged. This research was partially supported by Japan Society for the Promotion of Science (JSPS) Grant No. R2904 in the Program for Fostering Globally Talented Researchers.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 4 • April 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Apr 22, 2019
Accepted: Sep 10, 2019
Published online: Jan 29, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 29, 2020
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