The steel frame of a reefer truck was torn.
It’s found that the break was caused not by the connection problem, but by the glass fiber skin. The skin was torn like a paper along the force direction.
The skin of the container panel is made of glass fiber. It is a kind of short fiber that transfers friction to the resin when subjected to an external force. Then the resin transfers the friction to its surrounding fiber, which causes the break of the panel. So the performance of the fiber skin is decided by the resin.
