Corrosion Processes Blog Posts
The Boundary Element Method Simplifies Corrosion Simulation
As of version 5.4 of the COMSOL Multiphysics® software, there are features for simulating corrosion in slender structures. This significantly speeds up the total time spent when working with structures such as oil platforms. By using the boundary element method (BEM) and specialized beam elements in the Current Distribution, Boundary Elements interface, there is no longer a need for a finite element mesh to resolve the whole 3D structure, saving time for large corrosion problems consisting of slender components.
Using Simulation in the Race Against Corrosion
Corrosion is one of the most serious factors affecting the transportation industry. In an effort to minimize its impact, a German research institute and the manufacturers of Mercedes-Benz joined forces to investigate the corrosion occurring in automotive rivets and sheet metal. Using COMSOL Multiphysics simulation, they were able to study corrosion’s effects on car components.
Corrosion in Oil Platforms
While the offshore oil industry is usually very profitable, it can also be unpredictable, and at times, dangerous. Corrosion in steel oil platforms can lead to damage and failure of the structure, loss of business, and even on-site accidents. Fortunately, there are various ways to investigate and prevent corrosion in these structures to ensure a safe and productive drilling operation.
Avoiding Ship Hull Corrosion with ICCP and Simulation
Avoiding corrosion in a harsh ocean environment often requires the use of cathodic protection methods. These utilize different tools, such as sacrificial anodes or impressed currents, to help maritime-based industries stay afloat. One such system, impressed current cathodic protection (ICCP), mitigates corrosion by applying an external current to a ship hull. The efficiency of this method depends on factors such as the use of a coated propeller. Here, we use simulation to investigate how coating a propeller affects ICCP efficiency.
Modeling Corrosion for Automotive Applications
Corrosion is a widely encountered issue in the automotive industry. To account for and prevent this problem, industry leaders often run experiments to test the corrosion resistance of vehicles. Simulation, however, offers a simplified approach to addressing this phenomenon in automobiles — one that saves time, money, and resources.
Protecting Aircraft Composites from Lightning Strike Damage
At Boeing, innovation comes in the form of modern aircraft such as the 787 Dreamliner, whose body is made up of over 50% carbon fiber composite. While incredibly lightweight and strong, such aircraft composites are not inherently conductive, thus requiring additional protective coatings to mitigate lightning strike damage. Here, we describe how multiphysics simulation is used to evaluate thermal stress and displacement in the protective coatings that undergo temperature fluctuations associated with the typical flight cycle.
A Strategy for Designing Corrosion-Resistant Materials
Billions of dollars are spent each year in the U.S. to repair corrosion damage. To help reduce the high cost of corrosion, engineers at the Naval Research Laboratory (NRL) in Washington, D.C. are using multiphysics simulation to gain a better understanding of the fundamental mechanism. A successful research outcome at NRL will establish the correlation between metal microstructure, corrosion, and mechanical strength. Material designers could then develop stronger, corrosion-resistant materials using this new information.
Intro to Corrosion Modeling for the Oil and Gas Industry
If you work in the oil and gas industry dealing with offshore drilling, corrosion is your worst enemy. A corroded oil platform is a dangerous platform and it can cost you a lot — in both lives and money. To avoid such a dark fate, you need to safeguard the steel structure from corrosion via a protection system, such as the cathodic protection process shown here.
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