TY - GEN
T1 - Effect of thickness and joint type on fatigue performance of welded thin-walled tube-plate T-joints
AU - Mashiri, Fidelis Rutendo
AU - Zhao, Xiao Ling
N1 - Publisher Copyright:
© 2005 EUCENTRE. All rights reserved.
PY - 2005
Y1 - 2005
N2 - Seventeen circular hollow section (CHS)-to-plate T-joints were fatigue tested under constant amplitude stress range. The CHS-Plate T-joints are made up of cold-formed hollow sections of thicknesses less than 4mm. The load applied was “in-plane bending in the brace”. For each of the three connection series tested, stress concentration factors (SCFs) were determined in one of the specimen in each connection series. The results of the CHS-Plate T-joints from this investigation are compared to the fatigue test results and stress concentration factors of welded thin-walled (t<4mm) square hollow section (SHS)-to-plate T-joints from previous research. The results from the two types of connections are analysed to determine the effect of tube wall thickness on fatigue strength and the effect of SCFs on fatigue strength. Lower bound S-N curves for the thin CHS-Plate and SHS-Plate T-joints are determined through statistical analysis using the least squares method. Fatigue design curves for the welded thin-walled CHS-Plate and SHS-Plate T-joints are recommended based on a comparison between the statistically determined lower bound S-N curves from the test data and the existing family of design S-N curves from the Australian Standard AS4100 and Part 1.9 Fatigue of EC3.
AB - Seventeen circular hollow section (CHS)-to-plate T-joints were fatigue tested under constant amplitude stress range. The CHS-Plate T-joints are made up of cold-formed hollow sections of thicknesses less than 4mm. The load applied was “in-plane bending in the brace”. For each of the three connection series tested, stress concentration factors (SCFs) were determined in one of the specimen in each connection series. The results of the CHS-Plate T-joints from this investigation are compared to the fatigue test results and stress concentration factors of welded thin-walled (t<4mm) square hollow section (SHS)-to-plate T-joints from previous research. The results from the two types of connections are analysed to determine the effect of tube wall thickness on fatigue strength and the effect of SCFs on fatigue strength. Lower bound S-N curves for the thin CHS-Plate and SHS-Plate T-joints are determined through statistical analysis using the least squares method. Fatigue design curves for the welded thin-walled CHS-Plate and SHS-Plate T-joints are recommended based on a comparison between the statistically determined lower bound S-N curves from the test data and the existing family of design S-N curves from the Australian Standard AS4100 and Part 1.9 Fatigue of EC3.
UR - http://www.scopus.com/inward/record.url?scp=33750891517&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:33750891517
T3 - International Conference on Advances in Experimental Structural Engineering
SP - 877
EP - 884
BT - AESE 2005 - Proceedings of the 1st International Conference on Advances in Experimental Stuctural Engineering
PB - EUCENTRE
T2 - 1st International Conference on Advances in Experimental Stuctural Engineering, AESE 2005
Y2 - 19 July 2005 through 21 July 2005
ER -