Elastic-plastic analysis of the PVRC burst disk tests with comparison to the ASME code -- Primary stress limits

Conference · Mon Feb 01 04:00:00 EST 1999

OSTI ID:754909

Jones, D P ^[1]; Holliday, J E

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1. Bettis Atomic Power Laboratory

This paper provides a comparison between finite element analysis results and test data from the Pressure Vessel Research Council (PVRC) burst disk program. Testing sponsored by the PVRC over 20 years ago was done by pressurizing circular flat disks made from three different materials until failure by bursting. The purpose of this re-analysis is to investigate the use of finite element analysis (FEA) to assess the primary stress limits of the ASME Boiler and Pressure Vessel Code (1998) and to qualify the use of elastic-plastic (EP-FEA) for limit load calculations. The three materials tested represent the range of strength and ductility found in modern pressure vessel construction and include a low strength high ductility material, a medium strength medium ductility material, and a high strength low ductility low alloy material. Results of elastic and EP-FEA are compared to test data. Stresses from the elastic analyses are linearized for comparison of Code primary stress limits to test results. Elastic-plastic analyses are done using both best-estimate and elastic-perfectly plastic (EPP) stress-strain curves. Both large strain-large displacement (LSLD) and small strain-small displacement (SSSD) assumptions are used with the EP-FEA. Analysis results are compared to test results to evaluate the various analysis methods, models, and assumptions as applied to the bursting of thin disks.

• Research Organization: Bettis Atomic Power Lab., West Mifflin, PA (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC11-98PN38206
• OSTI ID: 754909
• Report Number(s): B-T-3249
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
BOILERS
DATA ANALYSIS
ELASTICITY
FINITE ELEMENT METHOD
MECHANICAL TESTS
PLASTICITY
PRESSURE VESSELS
RUPTURES
STEELS
STRESS ANALYSIS
STRESS INTENSITY FACTORS