Numerical simulation study on stress field of heavy rail quenching based on Visual C++

LI Xin-can

(School of Automobile and Traffic Engineering, Wuhan University

of Science and Technology, WuHan 430081,China)

Abstract: Aiming at problem of the quenching process is difficult to formulate for the heavy rail, the stress field and the establishment of the finite element model of the heavy rail quenching were analyzed, and based on the Visual C++, the simulation software that analysis the heavy rail quenching stress field was development. In practical application, only need to input the corresponding parameters in the simulation software, including rail quenching thermal properties of materials, conditions, the software would automatically call the finite element software to simulate the quenching process in the background, then obtained the stress field distribution, through comparative the result of analysis to get the best time of heating, and then developed better quenching process. After simulation, by compared the three kinds of conditions, the results indicate that: when the heating time is set to 40 s, the holding time is set to 25 s and the quenching time is set to 35 s, which is the better quenching process. Provided the convenience for the quenching staff who do not understand the finite element software even didn't use the finite element software to carry on the analysis for the heavy rail the quenching process, and there is an important significance for the industrial production.

Key words: rail quenching; finite element method; stress field; numerical simulation