Experimental and Numerical Study on Ductile Fracture of Structural Steels under Combined Shear and Tension
Publication: Journal of Bridge Engineering
Volume 21, Issue 5
Abstract
Ductile fracture of steel structural members under combined shear and tension was observed in past strong earthquakes, but studies on ductile fracture under the combined stress state have been very limited in the field of steel structures. This study aims to experimentally and numerically investigate the coupling effect of shear stress and tensile stress on ductile fracture of both mild steel and high-strength steel. Two series of specimens are manufactured in which they are under pure shear and combined shear and tension. Meanwhile, a generalized simulation process, including generalization of the whole stress-strain data up to the fracture and fracture parameter calibration using only tensile coupons, is proposed to simulate ductile fracture of different structural steels. The generalized simulation process is proven to be capable of simulating ductile fracture under the combined stress state with good accuracy and simplicity.
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Acknowledgments
This study is supported in part by grants from the Advanced Research Center for Natural Disaster Risk Reduction, Meijo University, which is supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. This study is also partially supported by National Nature Science Foundation of China (51508401) and the Fundamental Research Funds for the Central Universities.
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Published In
Journal of Bridge Engineering
Volume 21 • Issue 5 • May 2016
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© 2016 American Society of Civil Engineers.
History
Received: Oct 10, 2014
Accepted: Aug 17, 2015
Published online: Jan 22, 2016
Published in print: May 1, 2016
Discussion open until: Jun 22, 2016
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