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In this first newsletter of 2012 we would like to introduce some new technology which has been developed by BEASY to predict the behaviour of galvanic corrosion in structures such as aircraft and ground vehicles. Corrosion will occur whenever dissimilar metals or certain types of composites (e.g. ones that are carbon based) are located close to each other, unless mitigation measures are adopted. The challenge for designers is how to achieve mitigation in an optimum manner. |
BEASY modelling technology has been extensively used in both the marine and onshore industries for predicting corrosion and more importantly assessing the effectiveness of mitigation methods such as coatings and cathodic protection. An in-house development programme over the last two years has significantly extended this unique technology to enable it to be applied to identify the extent of the structure at risk of galvanic corrosion occurring in structures such as aircraft or vehicles caused by exposure of the structure to electrolyte films (arising from, for example, condensation, pooling of electrolytes or spray by de-icing fluids).
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Corrosion rate assessment of a vehicle structure subjected to de-icing spray |
BEASY Corrosion Manager is a new software product which enables engineers to quickly assess the risk to components and structures of corrosion and the effectiveness of surface protection systems.
The geometry of the connections, types of material making up the structure, characteristics and extent of the electrolyte, and the type and extent of mitigation methods employed all affect the extent and rate of corrosion. BEASY Corrosion Manager enables engineers to replace the "find it and fix it" approach and replace it with a more fundamental approach, by adopting simulation that 'captures' this corrosion process and provides the ability to predict its behaviour. The model can be readily subjected to parameter studies (e.g. changes to the extent/ type of coating) thereby providing the designer with tangible inputs to decision making for the final selected configuration.
For further information on the Corrosion Manager, please click here
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The application and experimental validation of the software was recently presented at
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the DoD Corrosion Conference in a paper entitled "Modeling Approach for Galvanic Corrosion Protection of Multi-material Aircraft Structures".
The paper describes developments carried out with co authors EADS and Airbus into
the development and experimental validation of a computational model for simulating galvanic corrosion typically experienced in an aircraft environment. The focus of the study was thin electrolyte conditions that typically occur in the upper part of an aircraft structure. An experimental set-up was established for validation of the computational results. Good agreement has been obtained between observed and simulated data.
For a copy of the paper, please click here
For further information, please contact info@beasy.com |
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Training
Hands-on courses which provide training to maximize the benefits from BEASY's fracture software, will be held in the UK and US as follows:
* UK Fracture & Crack Growth Simulation - March 6-8 2012
* US Fracture & Crack Growth Simulation - April 24-26 2012
Related conferences
HPSM 2012 6th International Conference on High Performance Structures and Materials. 19 - 21 June, 2012, New Forest, UK
BEM/MRM 2012 34th International Conference on Boundary Elements and other Mesh Reduction Methods. 25 - 27 June, 2012, Split, Croatia
For further information about BEASY, please visit our website: www.beasy.com or email us at info@beasy.com |
