異種粒子充てん系の加熱膨張解析のためのパソコンによる2次元シミュレーション(<小特集>粉体小特集)

概要

論文の詳細を見る
There is urgent need to establish a mold for dental precision casting of pure titanium which has an excellent biocompatibility. The present authors have already developed a useful mold composed of refractory ceramic particles as a material for the aggregate and metal particles as a material for controlling expansion due to oxidation during heating. In order to design a mold having much more excellent dimensional precision and favorable other characteristics for quality control of the casting, it is necessary to analyze fundamentally the relationship between the amount of expansion of and aggregate particled, and binding strength between particles.The present investigation was undertaken to develop two kind of personal computer programs for simulation of (i) a packing of different size circles under a gravitational falling condition and (ii) an expanding circles in such a packed bed as (i). For the simulation (ii) process, the two dimensional finite element method was used. Since there is a good correlation between the results from the present trial simulation and the experimental data, it will be possible in the future to analvze the expansion mechanism of the mold in detail, by applying these developed programs.
社団法人日本材料学会の論文
1990-11-15