PROJECT SPOTLIGHT – Aircraft Impact Assessments

Aircraft Impact Assessments for NUSCALE Power

Artist rendering of NuScale Power’s nuclear power plant.

From 2015 to 2019 Structural Integrity Associates, Inc. (SI) worked with NuScale Power, LLC. to develop structural details for and perform aircraft impact assessments of NuScale’s SMR Reactor Building. The assessments were based on finite element analyses of various strike scenarios stemming from NEI 07-13 guidance. ANACAP, a proprietary SI concrete constitutive model, was used in the finite element analyses. Among other capabilities, the ANACAP model can capture multi-axial tensile cracking, compressive crushing with strain softening, and crack dependent shear stiffness.

Following SI’s analytical assessments, SI supported NuScale during a multi-day NRC AIA inspection. The NRC had no findings following their review of SI’s assessments, moving NuScale Power one step closer to bringing their Small Modular Reactor technology to market.

SI personnel have experience in all aspects of Aircraft Impact Assessments including:
• Research for NEI 07-13 methodology development
• Application of NEI 07-13 on assessments of new US plants
• Adapting NEI 07-13 methods for plants outside the US
• Extending NEI 07-13 methods for shock propagation
• Licensing support with US and Foreign regulators

Please contact Eric Kjolsing, PhD, PE if you’d like to learn more about how SI can help you in your structural assessments.

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