Fig. 1. Schematic diagram of specimen.
Fig. 2. Fracture sections after fatigue test.
Fig. 3. RayScan X-ray inspection system.
Fig. 4. Shrinkage defects of the test specimen by CT scan.
Fig. 5. Shrinkage defect shapes extracted from the specimens.
Fig. 6. Shrinkage cavities modeling of each specimens (SSM by multi ellipsoids).
Fig. 7. Shrinkage cavities modeling of each specimens by simplification of shape method.
Fig. 8. Hot spot stress method in weld notch area(Stress extrapolation).
Fig. 9. Results of Stress and fatigue Analysis in 2-1 specimen.
Fig. 10. Results of the experiment, analysis and hot spot stress method.
Table 1. Chemical composition of the A356 specimen.
Table 2. Conditions of heat-treatment for the specimen.
Table 3. Mechanical Properties of tensile test specimens.
Table 4. Results of the fatigue test.
Table 5. Results of the experiment, analysis and hot spot stress method.
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