b'Figure 2. Finite element results, for Configuration #1 (left) and Configuration #2 (right). Both von Mises (VM) stress and equivalent plastic (PEEQ) strain contours are given. Images at the top are from the increment at yield as determined by the stress-strain curve, and images at the bottom are at peak load where ultimate tensile strength occurscladding. A wide range of parametersBecause of its loading state and were investigating, systematicallyreduced sensitivity, Configuration varying their values by a series of#2 appears an ideal method if the increments comparable between theerrors identified in the first key two configurations. Those categorizedobjective can be reduced. Using the as having a significant impact in atsection cut method described in least one of the configurations arethe third objective, a mathematical summarized in the top of Figure 3. model describing the hoop tension This impact determination wasload in the Configuration #2 ring as based on significant changes to thea function of angle was developed. strength measurements derivedThis model closely matched the from the load-displacement data.finite element section cuts. From For example, when varying thethis model, force correction factors ring inner diameter from nominalwere generated, which reduce the dimensions, the strengths are greatlystrength measurement errors to impacted as seen in the bottom ofless than 1%. The uncorrected, Figure 3. The compiled sensitivitiescorrected, and actual stress-strain resulting from this project providescurves are shown in Figure 4. This valuable information for future testsapproach results in highly accurate of irradiated cladding, allowingand robust hoop strength measure-tests to both minimize and properlyments of irradiated cladding.account for measurement uncertainty.80 2022|AFC ACCOMPLISHMENTS'