pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (30권5호 196-200)
Modeling for the Fatigue Analysis of Al Alloy Casting Containing Internal Shrinkage Defect
내부 결함을 포함하는 알루미늄 합금 주조품의 피로해석을 위한 모델링
Sung-Won Lee, Hak-Ku Kim, Ho-Young Hwang, Si-Young Kwak
University of Science and Technology
The structural stress and fatigue behavior of tensile specimen containing internal shrinkage defect were modeled. Real shrinkage defect in casting was scanned by industrial CT (computed tomography), and subsequently its shape was simplified by ellipsoidal primitives for the structural analysis (S.S.M., shape simplification method). The analysis results were compared with the results by real shrinkage shape without any simplification process. It was possible to consider real shrinkage of casting in stress analysis and the method to predict fatigue life of casting with defect was proposed.
Shrinkage Defect, Casting Process, Fatigue Life, Stress Analysis, Finite Element Method, Shape Simplification Method.
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