Energy absorption impact system

摘要

A channeled energy absorption unit for a vehicle bumper impact system to absorb impact energy and forestall or minimize damage to vehicle frame rails under impact. The basic embodiment is a tube with one end flared and welded at a hole in one end plate or directly to the vehicle frame rail. When loaded axially, the tube splits, peels and is inverted to absorb impact in a generally square wave energy absorption. Preferred channels in the tube stabilize the failure mode during this process to assure a predetermined energy absorption characteristic.