Power2NextTest – Dynamic fracture mechanics test in hydrogen

Challenge:

Hydrogen is an essential part of the green transition, but there are major challenges in handling hydrogen when designing equipment and components. Testing materials in realistic environments is a prerequisite for safe handling of hydrogen.

Hydrogen affects the dynamic properties (fatigue) of metals in particular, as well as other materials, and virtually all components in hydrogen-containing environments are affected by cyclic loads – wave loads offshore, temperature variations, vibrations from machinery, pressure variations in e.g. pipelines, which are expected to increase when decentralised electrolysis plants are connected, and all other infrastructure. Pressure variations and the effect on hydrogen embrittlement are discussed in many relevant fora, as there is a lack of data in this area. There is a risk of being too conservative in the design phase due to lack of data, and an overuse of materials could potentially be avoided.

Solution:

FORCE Technology will establish the first test rig for dynamic fracture mechanics testing in hydrogen in Denmark. As part of the Test Centre for Hydrogen Technology in collaboration with DGC, they are already in the process of expanding existing test facilities to handle hydrogen. A test setup for static loading of items in a pressurised hydrogen atmosphere is planned, but the dynamic impact in a hydrogen atmosphere is extremely important to include in an overall evaluation of a material solution. It is this facility that is to be supported through this application.

Impact:

A test facility for fracture mechanics testing in hydrogen with dynamic loads in Denmark will contribute to Denmark’s continued leading position in the green transition. Without it, it is difficult to reach the goal of proof-of-concept on future material solutions. There is currently a waiting time of several years for similar test facilities in Europe, so Denmark has an advantage in being able to test nationally and retain knowledge and competences within the country’s borders.