A vehicle body front structure includes paired left and right front side frames extending in a vehicle front-rear direction and a crossmember that extends in a vehicle width direction and is suspended between the paired left and right front side frames. The front side frames respectively have side frame bend portions at rear portions thereof, the side frame bend portions bending inward in the vehicle width direction, and at least one of end portions of the crossmember in the vehicle width direction is connected to a corresponding one of the side frame bend portions.

A vehicle front portion structure includes: a dash cross-member extending in a vehicle width direction at a lower portion in a vehicle vertical direction of a dash panel, the dash panel being configured to partition between a power unit compartment provided at a vehicle front portion and a vehicle cabin, and the dash cross-member being a first framework member of which a cross-sectional shape when cut along the vehicle front-rear direction forms a first chamber portion between the dash cross-member and the dash panel; and a battery pack that extends in the vehicle width direction and the vehicle front-rear direction at the vehicle lower side of a floor panel that structures a floor portion of the vehicle cabin, a front end portion in the vehicle front-rear direction of the battery pack being joined to the dash cross-member.

A dash panel supporting structure includes a center member rested on a tunnel portion of a vehicle, a bridge member connected to an upper portion of the center member, and a pair of side members configured to support both ends of the bridge member and both ends of the center member on inner portions of side pillars of the vehicle. Therefore, the tunnel portion, a cowl panel and A-pillars of the vehicle are supported by each other through the dash panel supporting structure, so that the torsional rigidity of the vehicle is improved.

[Object] To achieve a weight reduction of a car body structure while maintaining collision safety to collisions from the front side of the vehicle.

[Solution] A vehicle front portion structure 1 according to the present invention includes: a framework member 2 in a gutter shape provided in a vehicle length direction from a front box to a cabin and having a side wall 22; and a dash lower panel 3 that includes a gutter section 4A having a side wall 42 and fitted into an inside of the framework member 2 and in which the side wall 42 of the gutter section 4A and the side wall 22 of the framework member 2 are joined together.

Since a recess 11f configured to house an in-vehicle component 37 is formed on an outer surface of a first wall portion 11c of a FRP vehicle body panel 24, a metallic reinforcing member 32 is fitted to the recess 11f and is fixed by adhesive, the reinforcing member 32 can compensate for a decrease in strength of the first wall portion 11c caused by the recess 11f. Since an outer peripheral portion of the reinforcing member 32 is mechanically fastened to the vehicle body panel 24 with rivets 33 and 35, the outer peripheral portion serving as a starting point of peeling of an adhesive is reinforced by mechanical fastening so that the vehicle body panel 24 and the reinforcing member 32 can be firmly integrated.

A vehicle body structure includes a dashboard extending in a vehicle width direction and defining a cabin and a power compartment in front of the cabin; a power unit arranged in the power compartment; a floor panel extending rearward in the cabin from the dashboard; and a dash crossmember projected forward from the dashboard and extending in the vehicle width direction. The dash crossmember has a first portion at least partially overlapping the power unit in a front view; and a second portion extending outward in the vehicle width direction from the first portion. A compressive strength of the first portion is lower than a compressive strength of the second portion.

A system and method for fabricating a vehicle structure includes a first portion and a second portion having a body cooperating with the first portion using an additive manufacturing process. The body of the second portion includes one or more projections extending from the body. A third portion includes at least one opening and operatively engages the one or more projections of the second portion.

An integrated side member having an impact absorbing structure may include a side member upper part connected to a front coupling end portion to be connected to a crash box, the side member upper part being formed in a U shape by connecting its left and right members to each other, side member lower parts fastened to the side member upper part, and a dash cross member coupled to a lower portion of the side member upper part and between both side member lower parts.

An object of the present invention is to provide a vehicle body floor structure capable of effectively preventing deformation of a floor panel by increasing bending strength of the floor panel even when an upper reinforcing member of the floor panel is removed. A vehicle body floor structure of the present invention includes a dash cross member disposed along a kick-up portion on a lower surface side of a floor panel, a novel front side frame having an outer frame and an inner frame at a rear portion of a side frame body, and a floor panel on which beads are formed to form a closed cross-section in cooperation with the outer frame and the inner frame.

A car body panel structure includes a stress relieving part disposed on the car body panel and located between multiple connecting sides for connecting the car body panel and the frame component.