A numerical fracture mechanics tool to help assess the structural integrity of nuclear power plant components
Chris Timbrell, Ramesh Chandwani, Angelo Maligno, Zentech International Ltd.
Charly Ma, Consys Company Limited
ISSI 2011 - Structural Integrity in Nuclear Engineering, Heifei, China, Oct 27-30 2011
Abstract:
Many nuclear power plant facilities have been operating for longer than
twenty years. Along with ageing of structural materials come other
issues, such as creep and corrosion, which can impact upon plant safety
and the integrity of the primary circuit. Plant lifetime extension and
continued safe and economic operation depends on ageing and lifetime
management. To be effective, this requires an understanding of how
safety may be maintained as components degrade over extended time
periods under operational conditions. Potential structural integrity
issues for future generation IV reactors are also paramount to further
develop the nuclear industry.
This paper describes some aspects of the numerical analysis tool,
Zencrack, which can assist in crack growth prediction and fitness for
service investigations for a range of nuclear power plant applications.