APPLICATION OF THE SIMULATION BASED RELIABILITY ANALYSIS ON THE ASSESSMENT OF THE CRITICAL THROUGH WALL CRACK STABILITY
Abstract eng: Specific feature of the nuclear power plants is in comparison with coal fired plants the break postulation of each high energy piping. Fluid system is considered as high-energy piping if the maximum operating temperature exceeds 100°C and the maximum operating pressure exceeds 2MPa. Based on the progress of the linear fracture mechanics US NRC approved deterministic „leak before break“ methodology. If the defined requirements are met, the break postulation may be canceled. The first step is the assessment of the through wall critical length lcrit. Using the Simulation Based Reliability Analysis approach all uncertainties in the input data of lcrit are in the paper analyzed and the related probability of pipe failure is predicted.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Brno
Conference Title:
Conference Title:
Engineering Mechanics 2011
Conference Venue:
Svratka (CZ)
Conference Dates:
2011-05-09 / 2011-05-12
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-24, last modified 2014-11-18
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