Effects of Defects Part A: Stochastic Finite Element Modeling of Wind Turbine Blades with Manufacturing Defects for Reliability Estimation

Abstract

A comprehensive protocol addressing the impact of manufacture flaws on the reliability wind turbines blades has been proposed. The main points of this framework can be summarized in four disciplines: Effects of Defects, Probabilistic Structural Reliability Modeling, Criticality Analysis, and In-Field Evaluations. The majority of the work discussed herein has focused on the development Stochastic Finite Element Analysis (SFEA) model to the probability of failure and address variation in the performance of a composite structure with defects. This analysis is integral to the generation of the Criticality Analysis, a risk assessment tool which can disposition a flawed composite structure.

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