Structural Engineering and Mechanics

  • 제61권3호
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  • Pages.325-334
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  • 2017
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Probability analysis of optimal design for fatigue crack of aluminium plate repaired with bonded composite patch

  • Errouane, H. (Laboratoire Structures de Composites et Materiaux innovants, Faculte de Genie Mecanique, Universite des Sciences et de la Technologie d'Oran) ;
  • Deghoul, N. (Laboratoire Structures de Composites et Materiaux innovants, Faculte de Genie Mecanique, Universite des Sciences et de la Technologie d'Oran) ;
  • Sereir, Z. (Laboratoire Structures de Composites et Materiaux innovants, Faculte de Genie Mecanique, Universite des Sciences et de la Technologie d'Oran) ;
  • Chateauneuf, A. (Clermont Universite, Blaise Pascal)
  • 투고 : 2016.04.08
  • 심사 : 2016.10.19
  • 발행 : 2017.02.10
⟨ 이전 논문 다음 논문 ⟩

초록

In the present study, a numerical model for probability analysis of optimal design of fatigue non-uniform crack growth behaviour of a cracked aluminium 2024 T3 plate repaired with a bonded composite patch is investigated. The proposed 3D numerical model has advanced in literatures, which gathers in a unique study: problems of reliability, optimization, fatigue, cracks and repair of plates subjected to tensile loadings. To achieve this aim, a finite element modelling is carried out to determine the evolution of the stress intensity factor at the crack tip Paris law is used to predict the fatigue life for a give n crack. To have an optimal volume of our patch satisfied the practical fatigue life, a procedure of optimization is proposed. Finally, the probabilistic analysis is performed in order to a show that optimized patch design is influenced by uncertainties related to mechanical and geometrical properties during the manufacturing process.

키워드

참고문헌

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피인용 문헌

  1. Analysis of various composite patches effect on mechanical properties of notched Al-Mg plate vol.25, pp.6, 2017, https://doi.org/10.12989/scs.2017.25.6.685