Static-stress analysis of dual-axis safety vessel
An 8-ft-diameter safety vessel, made of HSLA-100 steel, is evaluated to determine its ability to contain the quasi-static residual pressure from a high-explosive (HE) blast. The safety vessel is designed for use with the Dual-Axis Radiographic Hydrotest (DARHT) facility being developed at Los Alamos National Laboratory. A smaller confinement vessel fits inside the safety vessel and contains the actual explosion, and the safety vessel functions as a second layer of containment in the unlikely case of a confinement vessel leak. The safety vessel is analyzed as a pressure vessel based on the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, and the Welding Research Council Bulletin, WRC107. Combined stresses that result from internal pressure and external loads on nozzles are calculated and compared to the allowable stresses for HSLA-100 steel. Results confirm that the shell and nozzle components are adequately designed for a static pressure of 830 psi, plus the maximum expected external loads. Shell stresses at the shellto-nozzle interface, produced from external loads on the nozzles, were less than 700 psi. The maximum combined stress resulting from the internal pressure plus external loads was 17,384 psi, which is significantly less than the allowable stress of 42,375 psi for HSLA-100 steel.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6915111
- Report Number(s):
- LA-12435-MS; ON: DE93001860
- Country of Publication:
- United States
- Language:
- English
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Static-stress analysis of dual-axis confinement vessel
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Related Subjects
36 MATERIALS SCIENCE
CHEMICAL EXPLOSIONS
CONTAINMENT
PRESSURE VESSELS
STRESS ANALYSIS
STEELS
MATERIALS TESTING
STATIC LOADS
STRESSES
TEST FACILITIES
ALLOYS
CONTAINERS
EXPLOSIONS
IRON ALLOYS
IRON BASE ALLOYS
TESTING
420500* - Engineering- Materials Testing
360103 - Metals & Alloys- Mechanical Properties