Composite energy-absorbing assembly

An energy-absorbing assembly for a vehicle comprising:

• a housing comprising a first wall and a second wall, the first wall and the second wall being spaced apart from one another to at least partially define an interior compartment;
• and
• a plurality of discrete energy-absorbing elements each comprising a polymer and a plurality of reinforcing fibers, the plurality of energy-absorbing elements being at least partially disposed within the interior compartment and independently and directly fixed to the housing, each energy-absorbing element of the plurality of energy-absorbing elements comprising an elongated hollow structure extending between a first end and a second end and defining a substantially circular cross section in a direction perpendicular to the respective longitudinal axis, the elongated hollow structure defining a longitudinal axis extending nonparallel to at least one of the first wall and the second wall, the plurality of discrete energy-absorbing elements including,
• a first portion of the plurality of discrete energy-absorbing elements, each energy-absorbing element of the first portion defining a first length in a direction parallel to the longitudinal axis;
• and
• a second portion of the discrete plurality of energy absorbing elements, each of energy-absorbing element of the second portion defining a second length in the direction, the second length being distinct from the first length.