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Recent developments of the NESSUS probabilistic structural analysis computer programThe NESSUS probabilistic structural analysis computer program combines state-of-the-art probabilistic algorithms with general purpose structural analysis methods to compute the probabilistic response and the reliability of engineering structures. Uncertainty in loading, material properties, geometry, boundary conditions and initial conditions can be simulated. The structural analysis methods include nonlinear finite element and boundary element methods. Several probabilistic algorithms are available such as the advanced mean value method and the adaptive importance sampling method. The scope of the code has recently been expanded to include probabilistic life and fatigue prediction of structures in terms of component and system reliability and risk analysis of structures considering cost of failure. The code is currently being extended to structural reliability considering progressive crack propagation. Several examples are presented to demonstrate the new capabilities.
Document ID
19920051718
Document Type
Conference Paper
Authors
Millwater, H. (NASA Lewis Research Center Cleveland, OH, United States)
Wu, Y.-T. (NASA Lewis Research Center Cleveland, OH, United States)
Torng, T. (NASA Lewis Research Center Cleveland, OH, United States)
Thacker, B. (NASA Lewis Research Center Cleveland, OH, United States)
Riha, D. (NASA Lewis Research Center Cleveland, OH, United States)
Leung, C. P. (Southwest Research Institute San Antonio, TX, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
COMPUTER PROGRAMMING AND SOFTWARE
Report/Patent Number
AIAA PAPER 92-2411
Meeting Information
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference(Dallas, TX)
Funding Number(s)
CONTRACT_GRANT: NAS3-24389
Distribution Limits
Public
Copyright
Other