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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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Latest News
NRC updating GEIS rule for new nuclear technology
The Nuclear Regulatory Agency is issuing a proposed generic environmental impact statement (GEIS) for use in reviewing applications for new nuclear reactors.
In an April 17 memo, NRC secretary Carrie Safford wrote that the commission approved NRC staff’s recommendation to publish in the Federal Register a proposed rule amending 10 CFR Part 51, “Environmental Protection Regulations for Domestic Licensing and Related Regulatory Functions.”
D. Ostermann, C. Krumb, R. Krieg
Nuclear Science and Engineering | Volume 179 | Number 2 | February 2015 | Pages 211-231
Technical Paper | doi.org/10.13182/NSE14-3
Articles are hosted by Taylor and Francis Online.
During postulated severe accidents in nuclear power plants, steel sheets and shells may suffer high plastic strains up to several percent. In contrast, for design-basis accidents the strains are within lower limits of the order of 0.2% required by the given rules. In both cases the margins up to structural fracture are of vital interest. In sheets and shells these margins may be reduced by diffuse as well as localized necking. Therefore, this paper investigates the remaining structural deformability described by the uniform elongation strain, where diffuse necking starts, and the quasi-uniform elongation strain, where localized necking starts. The theoretical models developed recently for thin sheets under uniaxial loading are extended to account for biaxial loading. Major findings are confirmed by appropriate structural experiments. Based on these results and their scatter, strain limits are recommended for steel sheets and shells under accident loading, such that fracture can be excluded. The strains caused by the accidents discussed in this paper turn out to be below these limits.