By: Dan Parker, PE By analytically simulating the steps in the construction process, including the sequence of concrete placements, and tracking the history of the material behavior starting from initial placement, the potential for cracking is evaluated by comparing the time dependent stress and strains to the concrete cracking resistance and capacity. Aging Infrastructure Issues […]
Structural Integrity Associate, Inc. (SI) is pleased to announce that Anthony (Tony) W. Robinson will be joining Structural Integrity as the Senior Vice President and Chief Nuclear Officer, effective January 4, 2021. Tony spent more than 25 years (collectively) at Framatome (formerly AREVA, Inc. and predecessor companies), and most recently was the Senior Vice President […]
This past Holiday Season, the Charlotte office of Structural Integrity collected donations for Angels and Sparrows Soup Kitchen, whose mission is to fight hunger in Huntersville and the surrounding area.
On October 28th, the Structural Integrity (SI) Nuclear Fuel Technology Team achieved a major milestone in completing the first Verification & Validation phase in the development of its nuclear fuel performance and behavior code Pegasus©.
Mike comes to SI following tenures at Westinghouse Electric and Framatome. During his 25 year career in the nuclear industry, Mike has held a variety of leadership roles that spanned operations and business development. Selected accomplishments in the operations realm during that time included building and leading the Westinghouse Balance of Plant Engineering Department that […]
By: Dick Mattson and Minghao Qin A U.S. BWR utility contracted with Structural Integrity (SI) to review their current reinspection guidance documents relative to those contained in the BWRVIP inspection guidelines, the purpose of which was two-fold: Are current reinspection guidelines compliant with industry requirements? Are there components where reinspection intervals could possibly be extended? […]
By: Mark Jaeger and Andrew Crompton Acoustic resonance is a phenomenon in which an acoustic system amplifies sound waves whose frequency matches one of its own natural frequencies of vibration (its resonance frequencies). in everyday life. In the most simple at home example, blowing air over the open end of a bottle. Blow too hard, […]
By: Erica Libra-Sharkey INDUSTRY CHALLENGE From the US Department of Energy, Office of Nuclear Energy, “The demanding environments of an operating nuclear reactor may impact the ability of a broad range of materials to perform their intended function over extended service periods. Routine surveillance and repair/replacement activities can mitigate the impact of this degradation; however, […]
By: Bill Weitze 100% of thermal stress was treated as nonlinear gradient stress and linear bending stress was about 12% of the moment stress. Structural Integrity’s (SI’s) review of the stress terms used in piping analysis show that pressure stress does create bending stress in components… EPRI Report 3002014121 “Development of Fatigue Usage Life and […]
By: Scott Chesworth, Bob Grizzi, and Dilip Dedhia Optimizing the inspection interval for high-reliability components whose examinations have a significant outage impact. Welds and similar components in nuclear power plants are subject to periodic examination under ASME Code, Section XI. Typically, examinations are performed during every ten-year inspection interval using volumetric examination techniques, or a […]
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