b'Engineer Innovation | Aerospacesimple geometries; and 3D CAE with Simcenter STAR-CCM+ for complex components and high- risk areas.As part of the SBA program, Corrdesa worked with the U.S. Navy to create a standardized electrochemical database. The new database in Corrosion Djinn comes with data for modern alloys, Figure 1: F-18 wing and airframe corrosion coatings and surface treatments, and it is constantly updated with polarization The galvanic series was adopted as U.S.Corrdesas science-based corrosioncurves, showing current density and Military Standard (MIL-STD) and Detailanalysis with simulation electrode potential for new materials and (MIL-DTL)documents standardizingIve been kicked out of meetings in thecoatings. With the updated data, the design specifications and requirements.past for saying you can simulateDjinn tool calculates galvanic current and One such standard, MIL-STD-889, forelectroplating and corrosion - Alan Rose,corrosion rate between dissimilar galvanic compatibility assessment ischief executive officer (CEO) of Corrdesa,materials, coatings and treatments for required of all military aircraftmakes no bones about the popularsimple geometries. For complex programs. But the outdated standards,perception of corrosion simulation. Butgeometries, computational fluid even when applied correctly, can stillacceptance is growing. Today,dynamics (CFD) simulations with result in poor material choice andelectroplating simulation is a requirementSimcenter STAR-CCM+ predict the oversight.in many OEMs. With the rightchanges in corrosion rate that come with verification, validation and accreditation,variations in film thickness, to show Case in point: the US$228 million bill forit is common sense to use simulationwhere corrosion will occur and how bad repairs and retrofits related to corrosiontools for corrosion prediction. Alans 25it will be. The CAE approach takes hours on the F-22 fighter jet. The root cause ofyears of CAE experience shines throughto days per interface to offer prediction this problem lay within the galvanicwhen he talks about corrosionand fixes for high-risk areas of complex couple between the conductive gap fillersimulation. Meanwhile, Keith Legg, CTO,products. and aluminum skin panels, says Danielis a world-renowned expert on corrosion Dunmire, Director of the DoD Corrosionand coatings. It doesnt come as aRather than our customers wasting Policy and Oversight Office.surprise that Corrdesa is leading the waythousands of hours testing materials and in marrying corrosion and CAE.trying coatings, they can just To its credit, the DoD has updated MIL- characterize them in one day in the lab. STD889C to propose an approach usingCorrdesas corrosion analysis method is aCombine that with science-based galvanic current instead of potential. Thethree-step process: corrosion modeling and you can quickly Office of Naval Research has initiated aassess different materials and choose the Sea-Based-Aviation (SBA) program, An internationally recognizedbest one, notes Alan. Testing materials involving Corrdesa, to developelectrochemical database;to make them corrode takes time. With computational methods for corrosion 1D Corrosion Djinn tool to analyzeCFD, its non-destructive and you can analysis and prediction.80-90 percent corrosion threats fromvirtually test again and again. 10'