Fabrication Uncertainty in B-2 for Nuclear Pipe Bends Subjected to In-Plane Opening Moment
DSpace at IIT Bombay
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Title |
Fabrication Uncertainty in B-2 for Nuclear Pipe Bends Subjected to In-Plane Opening Moment
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Creator |
ROY, P
GHOSH, S |
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Subject |
nuclear pipe bends
stress index B-2 Monte Carlo simulation in-plane opening moment probabilistic characterization ELBOWS |
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Description |
For reliability-based design of pipe bends and elbows, a probabilistic characterization of the primary stress indices (B-1 and B-2) is essential. This paper aims at the characterization of the fabrication/geometric uncertainty in B-2, for thin stainless steel long radius pipe bends, subjected to in-plane opening moment. This characterization is performed in a framework based on Monte Carlo simulation and nonlinear finite element analysis. A revision of the code-based expression for B-2 is proposed where a random variable K replaces the constant numerator in this expression. The statistics for K are provided for different pipe nominal dimensions, which indicates that the existing provision gives a very conservative estimate of the plastic collapse moment for pipe bends subjected to in-plane opening flexure. [DOI: 10.1115/1.4007470]
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Publisher |
ASME
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Date |
2014-10-15T10:54:04Z
2014-10-15T10:54:04Z 2013 |
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Type |
Article
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Identifier |
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 135(1)
http://dx.doi.org/10.1115/1.4007470 http://dspace.library.iitb.ac.in/jspui/handle/100/14796 |
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Language |
en
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