NESSUS is a modular computer program employing state-of-the-art methods for
performing probabilistic analysis of structural/mechanical systems. NESSUS
can be used to assess component/system reliability, to identify important
random variables, to provide information for risk-based decision analysis
and reliability-based optimization, and develop designs that are more
cost-effective and reliable than those developed using traditional
deterministic design methods.
A three-month demonstration version of NESSUS is available at no cost to
evaluate the general capabilities of the software. This is a reduced
capability version with limits on the number of random variables and only
allows analytical functions. Use button on navigation bar to download
this demonstration version.
NESSUS may be licensed on an annual or perpetual basis:
To license NESSUS or for more information, contact:
David S. Riha
Reliability and Materials Integrity Section
Mechanical and Materials Engineering Division
Southwest Research Institute,
P.O. Drawer 28510, San Antonio, Texas 78228-0510
Phone (210) 522-5221, Fax (210) 522-6965.
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