Development of Modeling System for Structural Analysis of Casting with Shrinkage Cavities

摘要

This paper presents a modeling system for structural analysis of casting with internal shrinkage cavities.rnFirstly, STL format models of both the casting and internal shrinkage cavities were obtained with industrial ComputedrnTomography( CT) X-ray system and ImageWare?, and secondly, a python-based code was utilized to analyze shrinkagerncavity shapes and then simplify them to minimal volume ellipsoids which enclose all points of shrinkage cavities. The codernwas developed and implemented into ABAQUS? as a customized plug-in toolkit which makes it easy for engineers to modelrnthe casting with internal shrinkage cavities. At last,a case study showed that the developed integrated modeling system canrnbe easily used to generate the casting model with shrinkage cavities.