TY - GEN
T1 - Structural analysis of NPP components and structures
AU - Saarenheimo, Arja
AU - Keinänen, Heikki
AU - Talja, Heli
PY - 1998
Y1 - 1998
N2 - Capabilities for effective structural integrity
assessment have been created and extended in several
important cases. In the following presented applications
deal with pressurised thermal shock loading, PTS, and
severe dynamic loading cases of containment, reinforced
concrete structures and piping components.
Hydrogen combustion within the containment is considered
in some severe accident scenarios. Can a steel
containment withstand the postulated hydrogen detonation
loads and still maintain its integrity? This is the topic
of Chapter 2. The following Chapter 3 deals with a
reinforced concrete floor subjected to jet impingement
caused by a postulated rupture of a near-by high-energy
pipe and Chapter 4 deals with dynamic loading resistance
of the pipe lines under postulated pressure transients
due to water hammer.
The reliability of the structural integrity analysing
methods and capabilities, which have been developed for
application in NPP component assessment, shall be
evaluated and verified. The resources available within
the RATU2 programme alone cannot allow performing of the
large scale experiments needed for that purpose. Thus,
the verification of the PTS analysis capabilities has
been conducted by participation in international
co-operative programmes (Keinänen et al. 1998a).
Participation to the European Network for Evaluating
Steel Components (NESC) is the topic of a parallel paper
in this symposium. The results obtained in two other
international programmes are summarised in Chapters 5 and
6 of this paper, where PTS tests with a model vessel and
benchmark assessment of a RPV nozzle integrity are
described.
AB - Capabilities for effective structural integrity
assessment have been created and extended in several
important cases. In the following presented applications
deal with pressurised thermal shock loading, PTS, and
severe dynamic loading cases of containment, reinforced
concrete structures and piping components.
Hydrogen combustion within the containment is considered
in some severe accident scenarios. Can a steel
containment withstand the postulated hydrogen detonation
loads and still maintain its integrity? This is the topic
of Chapter 2. The following Chapter 3 deals with a
reinforced concrete floor subjected to jet impingement
caused by a postulated rupture of a near-by high-energy
pipe and Chapter 4 deals with dynamic loading resistance
of the pipe lines under postulated pressure transients
due to water hammer.
The reliability of the structural integrity analysing
methods and capabilities, which have been developed for
application in NPP component assessment, shall be
evaluated and verified. The resources available within
the RATU2 programme alone cannot allow performing of the
large scale experiments needed for that purpose. Thus,
the verification of the PTS analysis capabilities has
been conducted by participation in international
co-operative programmes (Keinänen et al. 1998a).
Participation to the European Network for Evaluating
Steel Components (NESC) is the topic of a parallel paper
in this symposium. The results obtained in two other
international programmes are summarised in Chapters 5 and
6 of this paper, where PTS tests with a model vessel and
benchmark assessment of a RPV nozzle integrity are
described.
M3 - Conference article in proceedings
SN - 951-38-5263-6
T3 - VTT Symposium
SP - 195
EP - 219
BT - RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants
PB - VTT Technical Research Centre of Finland
CY - Espoo
T2 - RATU2: The Finnish Research Programme on the Structural Integrity of Nuclear Power Plants
Y2 - 7 December 1998 through 7 December 1998
ER -