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The Nessus Software System for Probabilistic Structural Analysis

by H. R. Millwater, Southwest Research Inst, United States,
Y. -T. Wu, Southwest Research Inst, United States,
J. B. Dias, Southwest Research Inst, United States,
R. C. McClung, Southwest Research Inst, United States,
S. T. Raveendra, Southwest Research Inst, United States,
B. H. Thacker, Southwest Research Inst, United States,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

The Probabilistic Structural Analysis Methods (PSAM) project developed at SwRI integrates state-of-the-art structural analysis techniques with probability theory for the design and analysis of complex large-scale engineering structures. An advanced efficient software system (NESSUS) capable of performing complex probabilistic analysis has been developed. A number of software components are contained in the NESSUS system and include: an expert system, a probabilistic finite element code, a probabilistic boundary element code and a fast probability integrator. This paper discusses the NESSUS software system and its ability to carry out the goals of the PSAM project.

Subject Headings: Probability | Finite element method | Structural analysis | Computer software | Boundary element method | Systems engineering | Structural reliability

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