Bumper beam having an insert

A cross member for a bumper beam for an automotive vehicle comprising:

• an outer beam extending along a transverse direction having a main beam portion including an upper beam wall, a lower beam wall and a front beam wall connecting the upper beam wall and the lower beam wall, an upper beam flange and a lower beam flange extending respectively along a back end of the upper beam wall and a back end of the lower beam wall in the transverse direction, the back ends extending opposite to the front beam wall and being spaced from the front beam wall according to a longitudinal direction, the upper beam wall, lower beam wall and front beam wall defining together a beam inner volume open in a back direction opposite to the front beam wall;
• an inner reinforcement element extending inside at least a part of the beam inner volume, the inner reinforcement element including at least two reinforcement ribs protruding towards the front beam wall, the reinforcement ribs being connected together at least at back ends, opposite to the front beam wall, by an upper transversal branch and a lower transversal branch, extending in the transverse direction,
• the upper and lower transversal branches being attached respectively to the upper and lower beam flanges of the outer beam,
• each of the at least two reinforcement ribs abutting the front beam wall and a length of the upper transversal branch being less than a length of the upper beam wall and a length of the lower transversal branch being less than a length of the lower beam wall, the lengths being measured in the longitudinal direction.