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Elastic-plastic strain acceptance criterion for structures subject to rapidly applied transient dynamic loading [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
15 pages : digital, PDF file
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Rapidly applied transient dynamic loads produce stresses and deflections in structures that typically exceed those from static loading conditions. Previous acceptance criteria for structures designed for rapidly applied transient dynamic loading limited stresses to those determined from elastic analysis. Different stress limits were established for different grades of structure depending upon the amount of permanent set considered acceptable. Structure allowed to sustain very limited permanent set is designed to stress limits not significantly greater than yield stress. Greater permanent set in structure under rapidly applied transient dynamic loading conditions is permitted by establishing stress limits that are significantly greater than yield stress but still provide adequate safety margin (with respect to failure). This paper presents a strain-based elastic-plastic (i.e., inelastic) analysis criterion developed as an alternative to the more conservative stress-based elastic analysis stress criterion for structures subjected to rapidly applied transient dynamic loading. The strain limits established are based on a fraction of the strain at ultimate stress obtained from an engineering stress/strain curve of the material. Strains limits are categorized by type as membrane or surface and by region as general, local, or concentrated. The application of the elastic-plastic criterion provides a more accurate, less conservative design/analysis basis for structures than that used in elastic stress-based analysis criteria, while still providing adequate safety margins.
Report Numbers
E 1.99:kapl-p--000034
E 1.99: conf-961105--
conf-961105--
kapl-p--000034
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/01/1996.
"kapl-p--000034"
" conf-961105--"
"DE98006419"
1996 international mechanical engineering congress and exhibition, Atlanta, GA (United States), 17-22 Nov 1996.
Solonick, W.
KAPL Atomic Power Lab., Schenectady, NY (United States)
Funding Information
AC12-76SN00052
View MARC record | catkey: 14451185