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Division Spotlight
Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Candidates for leadership provide statements: ANS Board of Directors
With the annual ANS election right around the corner, American Nuclear Society members will be going to the polls to vote for a vice president/president-elect, treasurer, and members-at-large for the Board of Directors. In January, Nuclear News published statements from candidates for vice president/president-elect and treasurer. This month, we are featuring statements from each nominee for the Board of Directors.
Ray C. Daniel
Nuclear Technology | Volume 14 | Number 2 | May 1972 | Pages 171-186
Technical Paper | Material | doi.org/10.13182/NT72-A31133
Articles are hosted by Taylor and Francis Online.
Diameter and length changes have been measured for 0.25- to 0.30-in.-o.d. fuel rods having Zircaloy-4 cladding thicknesses from 17 to 22 mil. The external coolant pressure (2000 psi) yielded hoop stresses in the range of 11 000 to 15 000 psi. Short rods (6 to 11 in.) were irradiated in an experimental test reactor (ETR) loop [peak fast flux ≅ 1.5 x 1014 n/(cm2 sec) while long rods (∼10 ft) were irradiated in a NRX loop [2.5 x 1013 n/(cm2 sec)]. A method has been developed for separating components of the diameter and length changes caused by Zircaloy growth, external pressure, and fuel-clad interactions. It is concluded that the diameter shrinkages of the former rods (up to about 1 mil, 0.4%) were caused entirely by the external pressure. However, those of the latter rods (up to ∼2 mil, 0.8%) were strongly dependent on fuel-clad interactions, with large diameter shrinkages accompanied by large length increases (up to about 0.7%). A calculational method based on the CYGRO computer program simulates such behavior for long rods.
