Final report for confinement vessel analysis: Task 1, Correlation of new vessel data with finite element results
- APTEK, Inc., Colorado Springs, CO (United States)
Los Alamos performed tests of a modified confinement vessel in November 1992 to gain a better understanding of the response of the confinement vessel. The first test was meant to duplicate, with additional instrumentation, tests done previously for correlation with analysis. Task 1 of Subcontract Number 9-XH3-0607K-1 was the correlation of this new vessel test data with the results of finite element analyses. The authors also examined the data for the other test, which was for optical port development. The tests were numbered H-1573 and H-1562 and were fired on November 9 and 10, 1992, respectively. Test H-1573 was identical to the previous 40 lb tests except that a Burke tube was used to support the explosive charge while the explosive was freely suspended in the earlier tests. The second test, H-1562, was for development of the optical port. In addition to the Burke tube, this test also had additional components on the inside of the ports to protect the windows. The following are conclusions and recommendations drawn from assessment and correlation of tests H-1573 and H-1562: (1) yielding was measured at the bottom of the vessel for these tests; (2) the presence of a support tube in the vessel may have caused focusing of the pressure at the bottom, obscuring the response mechanism thought to have caused yielding in earlier tests; (3) the frequencies predicted using the finite element analysis correlated fairly well with the test results, but the analysis did not predict the yielding measured at the {minus}73 degrees locations; (4) excellent pressure measurements were obtained; (5) better methods of obtaining acceleration data for the windows need to be developed; and (6) the authors believe that the window damage is caused by response of the vessel.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); APTEK, Inc., Colorado Springs, CO (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10189641
- Report Number(s):
- LA-SUB-94-146-Task-1; ON: DE95001393; TRN: AHC29501%%144
- Resource Relation:
- Other Information: PBD: 30 Nov 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Response of containment vessels to explosive blast loading
Confinement Vessel Dynamic Analysis