| 摘要 |
PROBLEM TO BE SOLVED: To obtain a simulation method for sand mold casting where, when a casting composed of a cast steel or a cast iron is obtained by sand mold casting, at least one selected from strain, displacement and stress can be analyzed at high precision. SOLUTION: The simulation method for sand mold casting includes: a factor-creation step where an analysis model at least composed of a casting factor and a mold factor is created; a thermal conduction analyzing step (S3) where the thermal conduction of the casting factor and the mold factor is analyzed with the lapse of time to obtain the temperature of the casting element and the mold element; and a thermal deformation analyzing step (S4) including a constriction condition set step (S41) where, based on the temperature of the mold factor obtained by the thermal conduction analysis step (S3), the constriction conditions of the casting by the mold are set and an elastoplasticity analyzing step (S42) where, based on the set constriction conditions, the temperature variation and thermal expansion coefficient of the casting factor, the deformation of the casting factor is analyzed with the lapse of time, and at least one selected from the strain, displacement and stress of the casting factor is obtained. COPYRIGHT: (C)2010,JPO&INPIT
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