| 摘要 |
A bumper beam has an open hat beam profile with a central flange (11), two webs (12, 13) and two side flanges (14, 15), and it has two fastening portions (16, 17) in which the central flange has transverse recesses (30, 31), which continue along the webs for a maximum of 40% of the extent of the webs in the transverse direction. These recesses strengthen the profile and provide controlled deformation in response to collision loading. |
