By: Eric Kjolsing, Ph.D., PE
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.