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A coupled thermal-mechanical analysis of a mould-billet system during continuous casting

Qin, Yi and Zhou, J. and Peng, X. (2008) A coupled thermal-mechanical analysis of a mould-billet system during continuous casting. International Journal of Advanced Manufacturing Technology, 42 (5-6). pp. 421-428. ISSN 0268-3768

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The three-dimensional (3-D) thermal-mechanical behavior of a mold-billet system under actual casting conditions is investigated with an FE approach, taking into account the main influencing factors, such as solidification heat, latent heat released during phase transformation, heat transfer, as well as the interaction between the moving billet and the mold. It is based on the coupled thermal-mechanical analysis for the whole mold-billet system, instead of analyzing the thermal-mechanical behavior of the mold and the billet individually, as is often used in practice. Comparison shows that the former approach can provide satisfactory results without making use of the empirical estimation of the heat flux through the inboard surface of the mold based on the difference between the temperature of inlet and outlet cooling water at steady-state and the temperature distribution near the surface of the inboard plate measured experimentally, which are usually necessarily required for the latter approach to be applied in practice.