Numerical Simulation Analysis in Cooling Temperature Field and Bending Deformation after Rolling of 100-Meter Rail

Abstract:

The paper established U75V 100-meter rail 3-D transient non-liner finite element analysis model about U75V 100-meter rail by using the large-scale non-liner finite element analysis software ABAQUS. By analyzing the different positions in the section of the temperature variation, the changes of bending degree and the residual stress variation after the bending deformation have changed. Based on the 100-meter straight rail in natural cooling under the cooling process, simulation results showed that in the cooling process, deflection change with time mainly divided into four stages; In consideration of the friction effect, the flat rail cold curve for its deformation among roughly flat, the curve about either ends, the scope for bending is 18 meters, the maximal displacement is 1.88 meters while the flat rail occured end colding.

• Periodical: Applied Mechanics and Materials (Volumes 121-126)
• Pages: 4523-4527
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.121-126.4523
• Online since: October 2011
• Authors: Yu Yan Liu, Yan Wang, Lin Chen, Ge Li, Jian Guo Wang
• Keywords: 100-Meter Rail, Bending Deformation, Numerical Simulation, Temperature Field

References

[1] Liu Tian-mo, Fan Jin-hong and Wang Lin-yun: Computer simulation of Railway heavy rail steel heat treatment process [J]. Journal of Steel Research, 2003, 4(15): 38-47(in Chinese).

[2] Basu S L and Srimani D S: Gupt Rail behaviour during cooling after hot rolling [J]. Journal of Strain Analysis for Engineering Design, 2004, 39(1): 15-24.

DOI: 10.1177/030932470403900102

[3] Tawfik D and Mutton P J: Transient thermal stress analysis on rapid post-weld heat treatments applied to flash butt welded rails [J]. Science & Technology of Welding & Joining, 2006, 11(3): 326-336.

DOI: 10.1179/174329306x107629