Stakeholders or Phd/Writer name

  • Corentin HUMEAU

Scientific and technical limitations

The other key issue in marine application is the durability of offshore structures. Initially metallic materials were used to build marine vessels, offshore plants or submarine units. As in the case of ropes, metallic structures appear to have quite limiting properties when used in offshore applications. Most of them are highly subject to corrosion and result in high weight structures. Corrosion is critical in offshore applications due to the high conductivity of salt water, and can generate the ruin of the structure by reducing the thickness of healthy material. Indeed, this phenomenon lowers the ultimate strength of the material and can even create leaks (critical for surface vessels and submarines). On the other hand the strength over weight ratio is not optimum in the case of metals, therefore metallic structures subjected to high mechanical stresses are necessarily heavy and hard to handle.