Speed skiing is the sport of skiing downhill in a straight line at as high a speed as possible. There are two types of contests: breaking an existing speed record or having the fastest run at a given competition. Speed skiers regularly exceed 200 km/h.

With the velocities reached in this sport development of protection equipment especially for the helmet component. This project starts with an analysis of the principal types of head injury and injury mechanisms occurring in snowsports and Alpine ski disciplines. After it has been analyzed the helmet structure, in particular, the Speed Skiing helmet structure and the European and American standards.

Finally, the helmet has been engineered and subjected to dynamic impact tests, through FEM analysis, to evaluate its level of protection.
SPEED SKIING
HELMET STUDY
According to the selected standards, a set of boundary conditions is created where a set-up of impact velocity is chosen and the restriction is placed.



This type of analysis could be implemented in the early stages of the design process to validate different design configurations and guide design faster with fewer prototyping phases.

To analyze a helmet system we need to proceed with the creation of a FE model and the set-up following certain regulations or norms.

A ski helmet is made of 3 different components: an outside shell of ABS and two EPS foams with different densities.

In order to simulate the interfaces between the headform and the inner lines and the interactions between the impactor and the helmet's shell, contact formulations need to be used along with an explicit dynamics solver.