Challenges and solutions for improved durability of materials

 

 

Products developed for operations in harsh environments can truly benefit from innovation in sustainable design and materials. On 22 October, Sirris organised a webinar focusing on different challenging situations where the right choice in material and design can make or break your product. You can find the presentations in this article.

Adhesively bonded joints for maritime industry

There are many reasons for choosing adhesively bonded joints versus bolted or welded joints. Off course, there is the possibility to join dissimilar materials such as composite and steel, which is not possible by welding. This could lead to strong reductions in weight and thus in energy consumption. But also lower tolerance requirements, increased building safety (no hot works) and the absence of induced (welding) deformations are beneficial.
So why is there still a limited use in marine applications? Mainly because there is still a lack of knowledge of the condition of the joint after 25 years in harsh marine environment. So industry and research community have joined forces to find out how hybrid joints behave in corrosive environment and if we can predict failures. You can read all about it in the presentation by Prof. Wim De Waele from Ugent.

Corrosion monitoring

The availability of new sensor technology opens opportunities for a better corrosion management of your assets. The first years of monitoring and inspection experience in fixed offshore wind industry has revealed some interesting lessons learned. First of all, the lifetime of the sensors should be very long, because corrosion is a slow process. Frequent re-calibrations and fouling issues can create a situation where the sensors actually need more maintenance than the structure itself, which is obviously not the purpose of corrosion monitoring. Secondly, corrosion is a localised phenomenon. It is therefore necessary to identify the most critical points on the structure and validated corrosion models can really make a difference here. Read more about the challenges of corrosion monitoring and outlook towards the future in Jeroen Tacq's presentation.

This webinar has been organised within the framework of the Interreg OPIN project.