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Division Spotlight
Human Factors, Instrumentation & Controls
Improving task performance, system reliability, system and personnel safety, efficiency, and effectiveness are the division's main objectives. Its major areas of interest include task design, procedures, training, instrument and control layout and placement, stress control, anthropometrics, psychological input, and motivation.
Meeting Spotlight
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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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Fusion Science and Technology
Latest News
A more open future for nuclear research
A growing number of institutional, national, and funder mandates are requiring researchers to make their published work immediately publicly accessible, through either open repositories or open access (OA) publications. In addition, both private and public funders are developing policies, such as those from the Office of Science and Technology Policy and the European Commission, that ask researchers to make publicly available at the time of publication as much of their underlying data and other materials as possible. These, combined with movement in the scientific community toward embracing open science principles (seen, for example, in the dramatic rise of preprint servers like arXiv), demonstrate a need for a different kind of publishing outlet.
Leon Cizelj, Heinz Riesch-Oppermann
Fusion Science and Technology | Volume 32 | Number 1 | August 1997 | Pages 14-22
Technical Paper | First-Wall Technology | doi.org/10.13182/FST97-A19876
Articles are hosted by Taylor and Francis Online.
Electron-beam (EB) welding is an important joining technique for fabricating and assembling blanket and first-wall components in fusion reactors. A numerical modeling of the EB procedure of a selected part of a DEMO fusion reactor blanket is presented. Stress and temperature distributions during and after EB welding are analyzed with the help of nonlinear finite element calculations, including phase transformations of MANET stainless steel. Residual stresses are discussed. Their magnitude and distribution may stimulate the initiation and growth of surface cracks parallel to the weld. Analysis of postweld heat treatment shows that the residual stresses can be neglected if appropriate postweld heat treatment is performed. The main drawback of this analysis seems to be the lack of appropriate material data for high temperatures close to the melting point. Despite this, qualitative statements on the feasibility of joints are possible, and improved analyses of welding stresses are expected to make a valuable contribution to future studies that address the safety and reliability of blanket structures.
