926 フェーズフィールドモデルを用いた相, 温度および応力の連成解析

概要

論文の詳細を見る
The coupling effects of phase, temperature and stress/strain are formulated by using the phase field model, instead of the conventional formulation with the volume fractions of every phases. The thermodynamically consistent scheme by Wang and Sekerka which is based on the second law of the thermodynamics is applied. In order to take the effect of stress/strain into account, Gibbs free energy is adopted to the ordinal phase field model. The derived fundamental equations consisting of the phase field equation, heat conduction equation and stress-strain relation are numerically solved by the finite element method. Two-phase system initiated with a small nucleus of the second phase in the original phase are considered, and the variation of the stress due to the phase transformation is simulated as well as other coupling effects such as thermal stress, phase transformation due to cooling, the temperature change due to phase transformation and so on.
社団法人日本機械学会の論文
2003-08-05