Theoretical investigation of reactor primary-coolant pipe, welds, and fitting. [PWR; BWR]

Technical Report · Sun Jun 01 04:00:00 EDT 1975

OSTI ID:5958253

Emery, A F; Kobayashi, A S; Love, W J

This report contains the analyses resulting from the first year of investigation. A dynamic analytical model for a running axial crack in a cylindrical shell was developed and used to study the propagation of cracks due to a steady initial pressure and those arising during instantaneous pressurization. A thermal hydraulic two phase depressurization model which permits depressurization to occur by leakage through an axial crack was also developed to permit the study of axial running cracks subjected to the varying pressure caused by leakage. As a third phase of this investigation, stress intensity factors for surface cracks in pressurized and thermally shocked cylinders were derived.

• Research Organization: Washington Univ., Seattle (USA). Dept. of Mechanical Engineering
• OSTI ID: 5958253
• Report Number(s): EPRI-231; ON: DE82900081
• Country of Publication: United States
• Language: English

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