IMPACT-ABSORBING MEMBER

摘要

A crash energy absorption member is provided which has excellent crash energy absorbing properties with the ability of repeated buckling in a stable manner, a high average load at the time of collapse, and the maximum load which is within a range which does not break other members. It is a crash energy absorption member which preferably has a transverse cross-sectional shape of an octagon and which is intended for absorbing impact energy by buckling in the lengthwise direction into a shape of bellows when it receives an impact load. With respect to at least one side forming the transverse cross-sectional shape, when the angle formed by the two sides which adjoin the opposing ends of the one side is ±, the relationship between the length L1 of the one side and the distance L2 b 0 < L 1 / L 2 < 1 / { 2 × sin ( ± / 2 ) + 1 } .