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.

Download Paper

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

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Alan Rose is presenting "Corrosion Prediction and Testing for Aerospace and Defense" with Southwest Research, NAVAIR and Boeing at #Corrosion2019. Sign up for a FREE pass for NACE below so that you can come along and see Alan's presentation and visit us in booth 2648!

We will be presenting "Using simulation to understand the difference between corrosion in atmospheric environments and chamber tests" at #Corrosion2019. See the full program for the conference on the NACE website. Looking forwards to seeing everyone there, visit us in booth 2648! https://t.co/O9Gobaq1rm
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NACE International @NACEtweet
#CORROSION2019 begins in three weeks! The conference program preview is now live — find out what we've got planned for you in Nashville at the world's largest corrosion conference and expo.

Nashville, TN | March 24 - 28
Register today👉 https://t.co/d8447Ht7UE https://t.co/7AdRdRSvF4

MIL-STD-889 for Dissimilar Materials is changing – are you ready? Let Corrdesa help you with the transition by signing up to our webinar ( https://t.co/tZd5ndco8O) on February 26th and by reading our white paper on the @MPcorrosion website https://t.co/x5IlaKTJd8 https://t.co/3Lv9efunwi

MIL-STD-889C is Changing – Are you ready? For more information sign up to our webinar on **26th February**. This revised standard will replace galvanic potential with corrosion current to quantify the galvanic corrosion risk. https://t.co/tZd5ndco8O

MIL-STD-889 for Dissimilar Materials is changing – are you ready? This revised standard will replace galvanic potential with corrosion current as a metric to quantify the galvanic corrosion risk. **Sign up to our webinar today https://t.co/CN1zj7VQr6 **

Have a read of our article "Galvanic Corrosion Protection: Those Old Galvanic Potential Tables Are Finally Being Replaced" on the @MPcorrosion website: https://t.co/wMXf1njjY6