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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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AI at work: Southern Nuclear’s adoption of Copilot agents drives fleet forward
Southern Nuclear is leading the charge in artificial intelligence integration, with employee-developed applications driving efficiencies in maintenance, operations, safety, and performance.
The tools span all roles within the company, with thousands of documented uses throughout the fleet, including improved maintenance efficiency, risk awareness in maintenance activities, and better-informed decision-making. The data-intensive process of preparing for and executing maintenance operations is streamlined by leveraging AI to put the right information at the fingertips for maintenance leaders, planners, schedulers, engineers, and technicians.
Lee A. James
Nuclear Technology | Volume 14 | Number 2 | May 1972 | Pages 163-170
Technical Paper | Materlal | doi.org/10.13182/NT72-A31132
Articles are hosted by Taylor and Francis Online.
The effect of cyclic stress ratio (σmin/σmax) was examined for Type 304 stainless steel fatigue cycled at 1000°F using the principles of linearelastic fracture mechanics. Stress ratios varied between -0.15 and 0.75. It was found that at a given value of stress intensity factor range, ΔK, the fatigue-crack growth rate increased with increasing values of stress ratio. However, ΔK did not provide the best basis for correlating crack growth rate results for various stress ratios, and it was found that the term Kmax(1 - R)0.5 provided a much better correlation.
