Vehicle body structure

摘要

In a vehicle rear structure that is one example of a vehicle body structure, a rear suspension tower that is made of die-cast aluminum and a wheel housing outer that is made of a metal material having a higher fatigue strength than the die-cast aluminum of the rear suspension tower, are joined together via an extension panel that is made of a metal material having a higher fatigue strength than the die-cast aluminum of the rear suspension tower. Further, a step portion is formed between an inner peripheral portion and an outer peripheral portion of the extension panel to form a deformable portion.

主权项

1. A vehicle body structure comprising:
a first vehicle body panel that is made of die-cast aluminum; a second vehicle body panel that is made of a metal material having a higher fatigue strength than the die-cast aluminum of the first vehicle body panel; and a third vehicle body panel that is made of a metal material having a higher fatigue strength than the die-cast aluminum of the first vehicle body panel, the third vehicle body panel being joined to the first vehicle body panel by a first joint, the third vehicle body panel being interposed between the first vehicle body panel and the second vehicle body panel and the third vehicle body panel being joined to the second vehicle body panel by a second joint, wherein the third vehicle body panel includes a deformable portion provided between the first joint and the second joint, the deformable portion configured to elastically deform, when a load in a direction away from the second vehicle body panel acts on the first vehicle body panel, in the direction in which the load acts on the first vehicle body panel.