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	SwRI applies advanced probabilistic fracture mechanics to determine the probability distribution of fatigue life of a crankshaft. probabilistic sensitivity factors are computed from the analysis to indicate the variables most affecting the structure's reliability.

In an effort to develop faster, better, and less expensive ways to design, manufacture, and maintain engine systems, Southwest Research Institute (SwRI) engineers have pioneered the integration of advanced reliability methods and failure models.

NESSUS^®

The SwRI-developed risk assessment computer code, NESSUS, integrates highly efficient reliability methodology with other failure mode analysis, such as finite element analysis (FEA), using minimal computational time.

Some of the benefits of this approach include the ability to:

• Quantify reliability and safety

• Identify key variables and their influence early in the design process

• Integrate cost and risk assessments into engineering decisions

For more information about our probabilistic reliability capabilities, or how you can contract with SwRI, please contact Mark Tussing at mtussing@swri.org or

(210) 522-2628.

enginedesign.swri.org

| Design and Development | Engine, Emissions & Vehicle Research Division | SwRI Home |

Southwest Research Institute^® (SwRI^®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

December 28, 2012