کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
310163 | 513664 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fatigue tests and design of thin CHS-plate T-joints under cyclic in-plane bending Fatigue tests and design of thin CHS-plate T-joints under cyclic in-plane bending](/preview/png/310163.png)
A review of existing fatigue design guidelines has been undertaken and shows that there are no fatigue design recommendations for circular hollow section-to-plate T-joints subjected to in-plane bending. This paper therefore reports on the high cycle fatigue behaviour of welded thin-walled circular hollow section (CHS) tubes of thicknesses less than 4 mm that are fillet-welded onto a plate to form a base plate moment connection. The resultant thin CHS-Plate T-joints are subjected to cyclic in-plane bending load to determine their fatigue strength at different stress ranges. The S–N data from the failed thin CHS-Plate T-joints is analysed using the least-squares method of statistical analysis to obtain a design S–N curve. The derived design S–N curve for the thin CHS-Plate T-joints is compared to existing design S–N curves and also that of square hollow section (SHS)-to-plate T-joints under in-plane bending in current fatigue design guidelines. The thin CHS-Plate T-joints are found to have a better fatigue strength compared to the existing S–N curve for SHS-Plate T-joints under in-plane bending. An appropriate design S–N curve from the group of existing design S–N curves is adopted for the design of thin CHS-Plate T-joints.
Journal: Thin-Walled Structures - Volume 45, Issue 4, April 2007, Pages 463–472