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Uncertainty quantification of a containment vessel dynamic response subjected to high-explosive detonation impulse loading

Conference ·

Los Alamos National Laboratory (LANL), in cooperation with Southwest Research Institute, has been developing capabilities to provide reliability-based structural evaluation techniques for performing weapon component and system reliability assessments. The development and applications of Probabilistic Structural Analysis Methods (PSAM) is an important ingredient in the overall weapon reliability assessments. Focus, herein, is placed on the uncertainty quantification associated with the structural response of a containment vessel for high-explosive (HE) experiments. The probabilistic dynamic response of the vessel is evaluated through the coupling of the probabilistic code NESSUS with the non-linear structural dynamics code, DYNA-3D. The probabilistic model includes variations in geometry and mechanical properties, such as Young's Modulus, yield strength, and material flow characteristics. Finally, the probability of exceeding a specified strain limit, which is related to vessel failure, is determined.

Research Organization:
Los Alamos National Laboratory
Sponsoring Organization:
DOE
OSTI ID:
976158
Report Number(s):
LA-UR-02-2251; AIAA 2002-1567; AIAA Paper 2002-1567
Country of Publication:
United States
Language:
English

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