Analytic and experimental validation of thermo elastic plastic material response calculation [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: 9 pages : digital, PDF file
Additional Creators:: Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

We compare the thermo-elastic-plastic response of fissionable metals calculated by the solid mechanics code DYNA to an analytic model for the case of a uniformly heated thin spherical shell and to experimental data for the case of a thin rod heated in a pulsed reactor. In both cases, the materials are volumetrically heated by neutron exposure. We find good agreement between the code and the analytic model and experimental data for the first and second case, respectively. For very fast heating times, macroscopic displacement may be replaced by microscopic plastic flow. To verify this behavior, an experiment to be done at SNLA SPR III is described. Validation of the code in these simple geometries is a necessary step if calculations involving more complicated geometries are to be understood and trusted.

Report Numbers:

E 1.99:ucrl-jc--128704
E 1.99: conf-971082--
conf-971082--
ucrl-jc--128704

Subject(s):

Nuclear Reactor Technology

Other Subject(s):

Note:

Published through SciTech Connect.
10/02/1997.
"ucrl-jc--128704"
" conf-971082--"
"DE98050266"
": W-7405-Eng-48"
11. biennial nuclear explosive design explosive physics conference, Livermore, CA (United States), 20-24 Oct 1997.
DiPeso, G.

Funding Information:

W-7405-ENG-48

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