BEASY Software and Services

 

Abstract

The paper gives an overview of the development and experimental validation of a computational model for simulating galvanic corrosion in specific application case scenarios appearing in an aircraft environment. The numerical approach is based on solving the electro-neutrality equation with a three dimensional Boundary/Finite Element Method. Amongst the inputs of the problem are: geometrical description and physical properties of the electrolyte, as well as macroscopic polarization curves of the active electrodes. The main outcomes of the model are electric current density and potential distribution on the surface.

The focus of the study is thin electrolyte conditions that could occur in the upper part of A/C structure. A model considering a co-planar unpainted bi-material combination composed exemplarily of Aluminum AA2024 and carbon fibre reinforced polymer (CFRP) has been developed. An experimental set-up has been established for validation of the computational results. The validation approach is explained and the results obtained are presented. Good agreement has been obtained between observed and simulated data. This conceptual model can be applied to different multi-material combinations relevant for aircraft structures. In particular variations in the environmental condition are considered, including for example different thicknesses of electrolyte film, and different aggressiveness of electrolytes. Further parameter studies are discussed to show the effect of different physical properties of the electrolyte on corrosion rates and total current changes in the materials involved.

Keywords: Galvanic corrosion, AA2024, CFRP, Boundary/Finite Element Method, Aircraft

To get the full publication please Open the Publication Below

Open Here

Here are a series of case studies for the types of projects BEASY have helped with worldwide.

To download BEASY case studies we require data from you, please fill in the form provided and the material will become available to download


Please note that by submitting these details you are giving us permission to contact you further to validate that the material fully addressed your requirements.
We will not pass your details on to any third party organisations.

Request Information

To request more information on:

  • BEASY software products
  • Consultancy & Engineering
  • BEASY support services
  • Training
  • R&D and Customisation

See our Request Information Form

Newsletter Sign-up

Areas of Interest

Please note that by submitting this form you are giving us permission to store the details you have entered above in our database system.  We will use this data to add you to our mailing list to receive the monthly BEASY e-newsletters you have selected. You can remove yourself from the e-newsletter mailing list at anytime by choosing the opt-out feature on the e-newsletter. We may also send you literature about BEASY via postal mailings and any other BEASY information and announcements which we think you will find of interest. We will not pass your details on to any 3rd party organisations.

Follow Us!

To download BEASY documents we require data from you, please fill in the form provided and the material will become available to download