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Full field strain measurements of composite wing by digital image correlation

  • Pagani, A. (MUL group, Department of Mechanical and Aerospace Engineering, Politecnico di Torino) ;
  • Zappino, E. (MUL group, Department of Mechanical and Aerospace Engineering, Politecnico di Torino) ;
  • de Miguel, A.G. (MUL group, Department of Mechanical and Aerospace Engineering, Politecnico di Torino) ;
  • Martilla, V. (C.F.M. Air s.r.l.) ;
  • Carrera, E. (MUL group, Department of Mechanical and Aerospace Engineering, Politecnico di Torino)
  • Received : 2018.07.30
  • Accepted : 2018.09.19
  • Published : 2019.01.25
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Abstract

This paper discusses the use of the Digital Image Correlation (DIC) technique for the displacement and strain measurements of a wet lay-up composite wing. As opposed to classical strain gages, DIC allows to conduct full field strain analysis of simple to complex structural parts. In this work, wing-up bending tests and measurements of the composite wing of the Dardo Aspect by CFM Air are carried out through an ad-hoc test rig and the Q-400 DIC system by Dantec Dynamics. Also, the results are used to validate a finite element model of the structure under investigation.

Keywords

Acknowledgement

Supported by : Embraer S.A., Compagnia di San Paolo

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