DEFFI Project for a New Concept of Fatigue Design in the Aerospace Domain

Massimo, Ferlin; Oriol, Stéphane; Pyre, Alain; Lefebvre, Febien; Bignonnet, A.

doi:10.2514/6.2009-2306

Cited by 3 publications

(1 citation statement)

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“…Therefore, a series of alternative probabilistic methods have been proposed in order to improve on the computational expense of an MCS approach. The first is the Stress-Strength Interference (SSI) approach (Ferlin, 2009). This approach is based upon generating a 'Stress' distribution (e.g.…”

Section: Probabilistic Methodsmentioning

confidence: 99%

A Framework to Implement Probabilistic Fatigue Design of Safe-Life Components

Hoole

Sartor

Booker

et al. 2019

ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing

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Safety-critical components, such as aircraft landing gear, are designed using the 'safelife' fatigue analysis process. Variability exists within materials data, loads data and component dimensions and is currently mitigated using safety factors. Probabilistic approaches to safe-life fatigue design have been proposed to better represent this variability. However, challenges currently exist that prevent the wider utilisation of a probabilistic approach. This paper presents a framework that aims to overcome these challenges. The statistical characterisation, probabilistic, surrogate modelling and sensitivity analysis methods required to implement the framework are introduced. Finally, a discussion of how recent advances within aerospace fatigue design, such as 'big-data', can be used to support a probabilistic framework is presented.

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Section: Probabilistic Methodsmentioning

confidence: 99%