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Computational modeling using boundary element techniques has been proposed for design and evaluation of shipboard impressed current cathodic protection (ICCP) systems. LaPlace's equation, the governing differential equation for electrochemical corrosion, is well suited for solution by the boundary element method. There has been much work performed in this field during the past two decades. Computational modeling efforts designed to validate boundary element procedures are reviewed. U. S. Navy ship systems discussed are CG-59, CG-66 and CVN-68. Computational analysis accuracy is determined by comparison with physical scale modeling experimental results. Lessons learned from the analyses described are summarized. Advantages and disadvantages of boundary element modeling are discussed.
boundary element, cathodic protection, computational modeling, physical scale modeling, impressed current
Engineer, Multifunctional Materials Branch, Naval Research Laboratory, Washington, DC
Section Head, Marine Corrosion Facility, Naval Research Laboratory, Key West, FL