TY - JOUR
T1 - Structural integrity assessment of a nuclear vessel with FITNET FFS and Master Curve approach
AU - Ferreño Blanco, Diego
AU - Lacalle, Roberto
AU - Cicero, Sergio
AU - Scibetta, Marc
AU - Gorrochategui, Iñaki
AU - van Walle, Eric
AU - Gutiérrez-Solana, Frederico
N1 - Score = 10
PY - 2010/1
Y1 - 2010/1
N2 - The structural integrity of a Spanish nuclear vessel was assessed by obtaining the operation
pressure–temperature (P–T) limit curves relevant to the beltline region according to the
ASME Code. This method requires the knowledge of the material fracture toughness in
the ductile to brittle transition (DBT) region which is conventionally described by the
semi-empirical reference temperature RTNDT. Recent development of the Master Curve
(MC) methodology, with T0 as a reference temperature, is an attractive alternative that
do not rely on empirical correlations. Thus, the P–T curves were also calculated according
to the N-629 and N-631 ASME Code Cases which partially include T0 through RTT0 . Finally,
to evaluate the conservatism of the different methodologies (ASME Code and Code Cases),
the analysis was performed by means of the FITNET FFS procedure that consistently incorporates
the MC concepts. The study demonstrates the conservatism of the ASME code
which is manly due to the definition of the semi-empirical RTNDT index.
AB - The structural integrity of a Spanish nuclear vessel was assessed by obtaining the operation
pressure–temperature (P–T) limit curves relevant to the beltline region according to the
ASME Code. This method requires the knowledge of the material fracture toughness in
the ductile to brittle transition (DBT) region which is conventionally described by the
semi-empirical reference temperature RTNDT. Recent development of the Master Curve
(MC) methodology, with T0 as a reference temperature, is an attractive alternative that
do not rely on empirical correlations. Thus, the P–T curves were also calculated according
to the N-629 and N-631 ASME Code Cases which partially include T0 through RTT0 . Finally,
to evaluate the conservatism of the different methodologies (ASME Code and Code Cases),
the analysis was performed by means of the FITNET FFS procedure that consistently incorporates
the MC concepts. The study demonstrates the conservatism of the ASME code
which is manly due to the definition of the semi-empirical RTNDT index.
KW - Master Curve
KW - Structural integrity
KW - Nuclear vessel
KW - FITNET FFS
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_102804
UR - http://knowledgecentre.sckcen.be/so2/bibref/6528
U2 - 10.1016/j.engfailanal.2009.06.007
DO - 10.1016/j.engfailanal.2009.06.007
M3 - Article
SN - 1350-6307
VL - 17
SP - 259
EP - 269
JO - Engineering Failure Analysis
JF - Engineering Failure Analysis
IS - 1
ER -