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RESEARCH PAPERS

An Efficient 2-D Finite Element Procedure for Isothermal Phase Changes

[+] Author and Article Information
S. Chandrasekar

School of Industrial Engineering, Purdue University, West Lafayette, IN 47907

S. Wang, H. T. Y. Yang

School of Aeronautics and Astronautics, Purdue University, West Lafayette, IN 47907

J. Eng. Ind 112(4), 352-360 (Nov 01, 1990) (9 pages) doi:10.1115/1.2899599 History: Received February 01, 1989; Revised September 01, 1989; Online April 08, 2008

Abstract

An efficient finite element procedure is developed for the temperature and stress analyses of two-dimensional isothermal phase transformation problems such as solidification, melting, and solid-to-solid transformations, etc. This procedure uses adaptive remeshing along the element boundaries to track the discontinuities in the temperature gradient, the enthalpy, and the material properties, which exists across the phase transformation interface. The thermal stresses and the transient temperature distribution developed during solidification are calculated using this for several example problems. They are compared with the numerical and analytical solutions obtained for these problems by earlier investigators in order to demonstrate the efficiency and accuracy of this method, for the analysis of solidification problems, as well as its limitations.

Copyright © 1990 by The American Society of Mechanical Engineers
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