Finite Element Simulation and Experimental Study on Internal Fracture of Railway Sleeper Screw during Cross Wedge Rolling Process

Dinh van Hai; Dang Thi Hong Hue

doi:10.4028/www.scientific.net/MSF.804.311

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Characterization of High Speed Steel Billets Fabricated by Electro-Slag Rapid Remelting Method
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Finite Element Simulation and Experimental Study on Internal Fracture of Railway Sleeper Screw during Cross Wedge Rolling Process
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HomeMaterials Science ForumMaterials Science Forum Vol. 804Finite Element Simulation and Experimental Study...

Finite Element Simulation and Experimental Study on Internal Fracture of Railway Sleeper Screw during Cross Wedge Rolling Process

Abstract:

The internal defects in cross wedge rolling process are a big issue restricting the widely use of the technology in industry. Although internal failures in cross wedge rolling have been investigated by several authors, the internal defect generation and effective parameters are still not completely clear. In this study, the internal fracture of 1045 steel railway sleeper crew during cross wedge rolling were investigated numerically by using Johnson-Cook fracture model. Based on analyzing the relationship between stress and strain in the deformed area, the mechanisms of internal fracture of sleeper screw during cross wedge rolling process was explained and made clear. The simulation results are in reasonable agreement with experimental results conducted at the same conditions.

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Periodical:

Materials Science Forum (Volume 804)

Pages:

311-314

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.804.311

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Online since:

October 2014

Authors:

Dinh van Hai*, Dang Thi Hong Hue

Keywords:

Cross Wedge Rolling, Finite Element Simulation, Internal Fracture, Railway Sleeper Screw

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* - Corresponding Author

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