Interval field implementations for spatial uncertainty processing in non-deterministic FE analysis

摘要

This paper discusses the application of interval fields for the analysis of uncertain mechanical structures. More specifically, this work illustrates the use of interval fields to represent uncertainties with spatially distributed uncertain parameters in the context of finite element analysis. Four different mathematical interval field implementations are introduced and their efficieny and accuracy is compared. Finally, these implementations are illustrated and validated using a static stress analysis of a conical shell structure.