Nonlinear dynamic analysis of pipe whip tests. Final report

Technical Report · Thu May 01 04:00:00 EDT 1986

OSTI ID:5639388

Hsu, L C; Kuo, A Y

This is a numerical verification of two groups of pipe whip tests sponsored or cosponsored by EPRI. Experimental data of the two pipe whip tests, one by Tennessee Valley Authority (TVA) and by FRAMATOME/CEA, were provided by EPRI. A nonlinear finite element code, ABAQUS-EPGEN, developed under partial sponsorship by EPRI was used for modeling the pipe whip tests. Beam elements together with an equivalent nonlinear spring element or a partial shell mesh were used to model pipes and elbow in the pipe whip tests. Material nonlinearity due to plasticity, strain rate effects, and temperature, as well as geometric nonlinearity due to large rotation and boundary conditions were included in the study. Effects of strain rate and modeling techniques were assessed. Results by current industry approach were also included as a reference solution. This report can be used as a guideline for numerical simulation of pipe whip phenomena. 74 figs.

• Research Organization: Nutech Engineers, Inc., San Jose, CA (USA)
• OSTI ID: 5639388
• Report Number(s): EPRI-NP-4535; ON: TI86920334
• Country of Publication: United States
• Language: English

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220900* -- Nuclear Reactor Technology-- Reactor Safety
A CODES
COMPUTER CALCULATIONS
COMPUTER CODES
COOLING SYSTEMS
DEFORMATION
ENERGY SYSTEMS
FINITE ELEMENT METHOD
LIMITING VALUES
MATERIALS TESTING
MECHANICAL TESTS
NUCLEAR FACILITIES
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REACTOR COMPONENTS
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RESTRAINTS
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