From scia-online.com...
"Safety, reliability and risk are key issues in the design analysis procedures for structures with uncertain parameters. Here an objective way to assess the safety is essential.
Traditionally, the design of civil and mechanical load carrying structures involves the application of safety factors to cover the uncertainties on all kinds of parameters (load, material, geometry, boundary conditions, ...). A probalistic approach is used to define the safety factors.
The fuzzy finite element analysis (FFE) is a non-probalistic concept. This method is an extension of the Interval finite element analysis (IFE), which is based on an interval concept."
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