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Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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Waste Management 2024: The symposia at 50
This year marked the 50th anniversary of Waste Management Symposia’s Waste Management Conference, held March 10–14 in Phoenix, Ariz. The event has grown significantly since the first Waste Management Conference in 1974, which attracted about 200 attendees. This year’s conference saw a record attendance of around 3,300 people from more than 20 different countries and boasted 235 technical sessions and 89 exhibitors.
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.