Nuclear Reactor Pressure Vessel Certification Using Abaqus FEA

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Nuclear Reactor Pressure Vessel Certification Using Abaqus FEA

Case study showing how TÜV SÜD applies Abaqus FEA to certify nuclear reactor pressure vessels against pressurized thermal shock and regulatory safety standards.

Published

June 4, 2026

Read time

3 min read

Source

TÜV SÜD uses Abaqus FEA from SIMULIA to evaluate structural integrity of nuclear plant components under extreme conditions including rapid temperature changes, earthquakes, and radiation embrittlement. Engineers model reactor pressure vessels and piping systems to simulate loss-of-coolant events and verify compliance with IAEA safety requirements. The analysis supports license extensions and helps operators meet longevity and safety mandates for aging nuclear facilities.

Key takeaways

Abaqus FEA models stress loads from pressurized thermal shock on radiation-embrittled reactor pressure vessels

Linear elastic and elastic/plastic simulations predict critical stress locations in vessels and nozzles

FEA supports regulatory compliance documentation required by IAEA and German licensing authorities

Virtual testing evaluates both new designs and existing components under simulated operational extremes

Results help extend plant operating licenses by confirming structural integrity over 40-year lifespans

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SCR methodology note

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