Side impact beam assembly

摘要

A side rail assembly for a vehicle having a chassis beam and a protective beam that are secured together by interlocking elements. The protective beam is preferably formed of a softer material than the chassis beam. The protective beam has an outboard wall that is spaced from an inboard wall and s-shaped wall sections interconnecting the outboard wall and inboard wall. The cell walls and an upper portion of the upper wall are preferably curved to facilitate preferential deformation in the event of an impact.