Highway guardrails, as important traffic safety facilities, are the last line of defense to protect the safety of cars and passengers when they lose control and deviate from the correct driving direction. On the one hand, they can absorb some of the energy of car collisions and reduce the peak deceleration of car collisions; On the other hand, it forces the out of control vehicle to return to the correct direction of travel.

The research methods for the "car guardrail" collision system include full-scale real vehicle collision tests and computer simulation analysis. The dynamic explicit finite element method can transform the infinite degree of freedom problem in physical space into a finite degree of freedom problem. It uses contact algorithms to handle the contact between objects and solves large deformation dynamic responses through explicit time integration. It is particularly suitable for solving large deformation, large angle, and large strain problems, and is therefore widely used in fields such as explosions, aerospace, and automobiles. Extensive practical experience has confirmed it. The explicit dynamic finite element method is an effective method and means for studying collisions between automobiles and guardrails.

Relying on the strong research capabilities of Tongji University, our company can provide customers with computer simulation collision tests of experimental products, helping them optimize product design and improve product safety performance.