Longitudinal beam arrangement of a body of a motor vehicle and bodywork of a motor vehicle with such a longitudinal beam arrangement

摘要

A longitudinal beam arrangement of a body of a motor vehicle according to the present invention is designed in such a way that in the case of a collision, in particular a head-on collision, or of a collision load in the longitudinal direction of the longitudinal beam arrangement, of the motor vehicle collision energy absorbing fails progressively. The longitudinal beam arrangement has a first add-on longitudinal member, which is formed from a fiber composite material, and has a second add-on longitudinal member, which is formed from a fiber composite material. The second add-on longitudinal member is arranged behind the first add-on longitudinal member, and is aligned in particular with the first add-on longitudinal member. The first add-on longitudinal member and the second add-on longitudinal member are connected to one another by means of a connecting element. The longitudinal beam arrangement is designed in such a way that in the case of the collision of the motor vehicle the second add-on longitudinal member begins to failure, after the first add-on longitudinal member fails.