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C. Chen¹, F.C. Zhang¹ and D.Y. Sun²

¹State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China
²National Engineering Research Center of Cold Rolling Strip Equipment and Technology, Yanshan University, Qinhuangdao, China

doi:10.4203/ccp.110.127

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C. Chen, F.C. Zhang, D.Y. Sun, "Numerical Simulation of a Hadfield Steel Crossing subject to an Explosion", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 127, 2016. doi:10.4203/ccp.110.127

Keywords: Hadfield steel, railway crossing, explosion, pre-hardening, simulation, plastic strain, Abaqus, finite element.

Summary

This paper shows the Hadfield steel crossing explosion hardening process and how an explosion acted on the crossing. The computer simulation software Abaqus was used to analyse the explosion parameters during the explosion. According to the explosion hardening test on the Hadfield steel crossing, a finite element model was established in Abaqus. The results showed that when a 3 mm thick explosive sheet was used to explosively harden the Hadfield steel crossing once, the explosion pressure was 5 GPa and the explosion time was 5 µs. The impact pressure produced by the explosive shock wave on the crossing surface exhibited a parabolic law, which was caused by large plastic deformation on the crossing surface. The sinkage of the surface was 0.51mm after the simulated explosion treatment. The largest plastic strain on the crossing surface was 2.2%.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 127 Numerical Simulation of a Hadfield Steel Crossing subject to an Explosion C. Chen¹, F.C. Zhang¹ and D.Y. Sun² ¹State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China ²National Engineering Research Center of Cold Rolling Strip Equipment and Technology, Yanshan University, Qinhuangdao, China doi:10.4203/ccp.110.127 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Chen, F.C. Zhang, D.Y. Sun, "Numerical Simulation of a Hadfield Steel Crossing subject to an Explosion", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 127, 2016. doi:10.4203/ccp.110.127 Keywords: Hadfield steel, railway crossing, explosion, pre-hardening, simulation, plastic strain, Abaqus, finite element. Summary This paper shows the Hadfield steel crossing explosion hardening process and how an explosion acted on the crossing. The computer simulation software Abaqus was used to analyse the explosion parameters during the explosion. According to the explosion hardening test on the Hadfield steel crossing, a finite element model was established in Abaqus. The results showed that when a 3 mm thick explosive sheet was used to explosively harden the Hadfield steel crossing once, the explosion pressure was 5 GPa and the explosion time was 5 µs. The impact pressure produced by the explosive shock wave on the crossing surface exhibited a parabolic law, which was caused by large plastic deformation on the crossing surface. The sinkage of the surface was 0.51mm after the simulated explosion treatment. The largest plastic strain on the crossing surface was 2.2%. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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