Fatigue of metallic structures, with a focus on the case of airframes

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

Paulo Tavares de Castro (Author) FEUP; Sérgio Tavares (Author) FEUP

Conference proceedings International

Title: Proceedings of the 1st Iberic Conference on Theoretical and Experimental Mechanics and Materials / 11th National Congress on Experimental Mechanics

Pages: 1057-1060

Proceedings of the 1st Iberic Conference on Theoretical and Experimental Mechanics and Materials / 11th National Congress on Experimental Mechanics

Porto/Portugal, 4-7 November 2018

Other information

Abstract (EN): Damage-tolerance is the main design approach for airframes, making possible weight savings and structural integrity assurance in the presence of eventual damage resulting from manufacturing or developed in service. The damage-tolerance approach relies upon databases of fatigue and fracture properties, corrosion behavior, failure modes and non-destructive inspection, particularly minimum detectable defect size and inspection intervals. When inspection is impossible or multiple load paths are unavailable, then the older safe life design approach needs to be used - that is the case of certain airframe details and of the landing gear. The presentation will review the topic of fatigue of airframes highlighting issues as materials choice (Al alloys including Al-Li, composites …), mixed mode crack propagation testing and modelling, residual stresses and integral metallic structures, in the context of the evolution of the applicable regulations of the Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA). It constitutes an opportunity to up-date a previous plenary lecture for another conference of the Associação Portuguesa de Análise Experimental de Tensões (APAET), already in 2010: 8º Congresso Nacional de Mecânica Experimental, Guimarães, [1].

Language: English

Type (Professor's evaluation): Scientific

Notes: CNME2018 & TEMM2018: 11º Congresso Nacional de Mecânica Experimental em conjunto com 1ª Conferência Ibérica de Mecânica Teórica e Experimental e Materiais, Porto, Portugal), November 4-7, 2018. Published in: J. F. Silva Gomes, ed., ‘CNME2018 - Proceedings of the 1st Iberic Conference on Theoretical and Experimental Mechanics and Materials & 11th National Congress on Experimental Mechanics, Porto, Portugal, 4-7 November 2018, FEUP-INEGI, 2018.

No. of pages: 4