Resources

Papers and Presentations

The Simcenter conference was very interesting, providing a great opportunity to learn more about the present software tools and also the trends in future development. One key takeaway for Corrdesa was the presentation on ‘Design Manager’ – this is a very powerful tool allowing easy setup of many simulations to more thoroughly explore the design space. So now we have changed out engineering workflow to think in more of a stochastic framework of many simulations and ranges of parameters instead of deterministic simulations of one scenario after the other. This approach really leverages the power of our computing cluster and provides much more optimum solutions to our clients. 

Alan’s corrosion simulation presentation was received very well with many questions and follow-up meetings. Much of the  Siemens Simcenter community were unaware of the existence of the electrochemical modules within CCM+ and in particular the advances made in corrosion prediction. The presentation is available below showing how the ‘1D’ approach of Corrdesa Corrosion Djinn can be leveraged to assess corrosion risks in materials selection and then further refinement made in more complex designs with the use of CCM+ employing the Corrdesa electrochemical database.

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The demand for lightweight design and better fuel-efficiency in the aerospace industry has reflected a significant increase in usage of more lightweight materials
such as CFC (Carbon Fiber Composite), titanium and aluminum alloys. Combinations of these dissimilar materials are often dictated by structural requirements that need to be fulfilled in the design. In an aircraft, these disparate materials are usually mechanically joined using fasteners or structural adhesives. However, when CFC and aluminum are connected, galvanic corrosion may be induced in the presence of moisture, introducing an additional degradation mechanism.

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Corrosion Djinn is easy-to-use software available on-line and as an ‘App’ for IoS and Android, that helps
engineers and designers make sound material choices in design and maintenance by predicting and
quantifying galvanic corrosion risk at material interfaces.

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The present approach for considering galvanic incompatibilities is simplistic and static. It is simplistic in
that the only thing it takes into account is the galvanic potential difference between two adjacent materials.An estimate of the galvanic corrosion severity is usually based on some form of galvanic potential table,
as in MIL-STD-889. However, in mixed material assemblies it is the galvanic current that determines the
severity of corrosion, not the galvanic potential, and the two are not directly related.

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Aircraft typically comprise multiple materials, each exhibiting unique electrochemical properties. When they are exposed to harsh marine and global environments, the difference in material properties can lead to severe galvanic corrosion, causing safety risks, costly repairs, and reduced readiness.

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This standard defines and classifies dissimilar metals and establishes requirements for protecting coupled dissimilar metals against corrosion with attention directed to the anodic member of the couple

Download MIL-STD-889C

Twitter Feed


Our Corrosion Djinn database is always growing. Here's some varied substrates post-measurement! #corrdesa #polarizationcurves #corrosionconsulting #materialsengineers #corrosiondjinn https://t.co/3ziSOqsJyj CorrdesaLLC photo

Our new website is now up and running - same old address with a brand new look! https://t.co/bDtcE9XVk6

Office looking all ready for the holidays. We can't help you protect yourself from buying the wrong gifts but we can help you protect against corrosion... #Corrdesa #TyroneGA https://t.co/qE6R1mPhqz CorrdesaLLC photo

JOB OPPORTUNITIES! We have some really interesting development projects and have a need for another materials/corrosion engineer and a sales engineer.
For more information: Materials/corrosion engineer - https://t.co/B6lCZWqyTV . Sales engineer - https://t.co/JJxiRV7fxg . https://t.co/sm2mCCYtBs
CorrdesaLLC photo

Our very own Alan Rose and Keith Legg in Washington DC last week for the @SERDP_ESTCP conference! https://t.co/WPwuwZbEvA CorrdesaLLC photo

Plenty of people signed up to tomorrow's short course on "Practical applications for selective plating and anodizing in manufacturing and sustainment" We are looking forwards to running it! @SERDP_ESTCP #SerdpEstcp2018