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Title: Assessment of a gouge, a dent, or a dent plus a gouge, in a pipe using limit analysis or notch fracture mechanics
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Project No.:
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Catalog No.: 2236s
Date of Publication: Sep 1 2011 12:00AM
Price: $25.00 US
Authors: Prof. Guy Pluvinage, Dr Mustapha Allouti, Dr Christian Schmitt, and Dr Julien Capelle
Abstract: METHODS FOR PIPE defect assessment are described, particularly for gouges, dents, and combined gouge and dent defects. Due to the fact that these defects induce elastoplastic failure, the assessment methods are based on limit analysis or notch fracture mechanics, and both provide close safety factors. In this paper the following methods are described:

for gouges – limit analysis and notch fracture mechanics;
for dents – a ductility criterion;
for combined gouges and dents – a method based on notch fracture mechanics taking into account stress triaxiality.

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