Abstract:
Based on the saddle-shaped surface feature of Outlet to Shell weld in RPV, this paper firstly constructs the universal equations for space curves within the ultrasonic needs by ASME and RSE-M codes. Afterwards, it deduces the left-side and right-side boundary calculations of inaccessible zones, which depending on the beam incident angle. Using the Pro/E software to build the 3D models, it can evaluate the quantitative properties of inaccessible zones by incident angle and section angle.
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