A thermomechanical model for the analysis of light alloy solidification in a composite mould |
| |
| Institution: | 1. Department of Food Engineering, Ankara University, Golbasi-Ankara, Turkey;2. Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, United States;3. UMR 0782 SayFood Paris-Saclay Food and Bioproduct Engineering Research Unit, INRAE, AgroParisTech, Université Paris-Saclay, Massy, France;4. Dipartimento di Ingegneria Industriale, Università degli studi di Salerno, Fisciano, SA, Italy;5. Division of Mechatronics, Biostatistics and Sensors (MeBioS), Biosystems Department, KU Leuven, Leuven, Belgium;6. Department of Agricultural Sciences, University of Naples Federico II, Naples, Italy;1. Department of Chemical and Biotechnological Engineering, Université de Sherbrooke, 2500 Boulevard de l''Université, Sherbrooke, QC J1K 2R1, Canada;2. Rio Tinto Aluminium (Arvida Research and Development Centre), 1955 Boulevard Mellon, Jonquière, QC G7S 4K8, Canada |
| |
| Abstract: | A coupled thermomechanical model to simulate light alloy solidification problems in permanent composite moulds is presented. This model is based on a general isotropic thermoelasto-plasticity theory and considers the different thermomechanical behaviours of each component of the mould as well as those of the solidifying material during its evolution from liquid to solid. To this end, plastic evolution equations, a phase-change variable and a specific free energy function are proposed in order to derive temperature-dependent material constitutive laws.The corresponding finite element formulation and the staggered scheme used to solve the coupled non-linear system of equations are also presented. Finally, the temperature and displacement predictions of the model are validated with laboratory measurements obtained during an experimental trial. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
