Fatigue characterization of adhesive joints in aeroplanes – the development of a negative load ratio (R < 0) testing method

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Abstract

Adhesive joints are an efficient method to transfer high loads between structural components. High-performing adhesive joints require careful design and precise knowledge of the adhesive product used. Especially in aeroplanes, load spectra range from negative to positive load (factor) levels. It is well known that the trajectory of crack growth in adhesive joints is highly sensitive to local stress state and fracture toughness. However, up to date, there are no methods to accurately study fatigue of adhesive joints under varying load (positive-to-negative loading, i.e., load ratio R changing its sign). In this study, a testing system is developed to perform negative R fatigue testing of adhesive joints and mode II crack propagation
Original languageEnglish
Title of host publication33rd Congress of the International Council of the Aeronautical Sciences ICAS2022
Number of pages10
Publication statusPublished - 2022
Publication typeA4 Article in conference proceedings
EventCongress of the International Council of the Aeronautical Sciences - Stockholm, Sweden
Duration: 4 Sept 20229 Sept 2022

Publication series

NameICAS Legal Notes
ISSN (Electronic)2958-4647

Conference

ConferenceCongress of the International Council of the Aeronautical Sciences
Country/TerritorySweden
CityStockholm
Period4/09/229/09/22

Keywords

  • joints
  • fatigue
  • crack propagation
  • adhesive
  • Testing Process

Publication forum classification

  • Publication forum level 0

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