Presented are multilayer, fiber-reinforced impact protection structures with honeycomb-core or corrugated-layer designs, methods for making/using such structures, and vehicles with traction battery packs supported on skid plates fabricated from such structures. A multilayer impact protection structure includes a first layer with continuous fibers embedded in a polymeric matrix, and a second layer that is attached to the first layer and includes an elastomeric polymer. A third layer, which is attached to one side of the first layer opposite that of the second layer, includes a fiber-reinforced polymer honeycomb and/or corrugated structure. An optional fracture detection circuit is attached to the first or third layer, and is configured to detect a break in the impact protection structure. The corrugated structure may include multiple reinforcement ribs that are interposed within and substantially orthogonal to a series of mutually parallel, elongated ridges. Comparatively, the honeycomb structure includes a lattice of adjoining polygonal cells.

The present disclosure provides a collision energy absorbing apparatus capable of suppressing a peak load at the initial stage of a collision and a load drop immediately after it. The collision energy absorbing apparatus is an apparatus that absorbs collision energy, the apparatus being mounted on a vehicle and including a pressure member, an absorbing member, and a guide part that guides, a moving direction of the pressure member, in which a hole through which the pressure member guided and moved by the guide part enters is formed in the absorbing member, and in an event of a collision, the pressure member is guided by the guide part and a tip part of the pressure member enters the hole formed in the absorbing member while shearing an inner wall of the hole, to thereby absorb collision energy.

Disclosed are a vehicle back beam capable of maximizing impact performance and reducing product weight; and a vehicle including same. According to one embodiment of the present invention, provided is a vehicle back beam which includes: a back beam body; and a back beam reinforcing part which is formed in at least one section of the back beam body and composed of a highly deformable composite material.

Disclosed are a vehicle back beam capable of maximizing impact performance and reducing product weight; and a vehicle including same. According to one embodiment of the present invention, provided is a vehicle back beam which includes: a back beam body; and a back beam reinforcing part which is formed in at least one section of the back beam body and composed of a highly deformable composite material.

A shock absorbing member includes an outer member being hollow and made of a metal, and an inner member held in the outer member. The inner member includes a wood member and a bracket that is made of a solid resin or a metal and that is integral with the wood member. The inner member includes a holding structure configured to position and hold the bracket to the outer member.

An embodiment vehicle body coupling structure of a vehicle that includes an underbody and an upper body coupled to the underbody includes a front back beam assembly provided on a front side of the underbody, a first mounting part provided on a front side member of the upper body and coupled with the front back beam assembly, and a first body coupling part provided on the front back beam assembly and engaged with the first mounting part.

An embodiment vehicle body coupling structure of a vehicle that includes an underbody and an upper body coupled to the underbody includes a front back beam assembly provided on a front side of the underbody, a first mounting part provided on a front side member of the upper body and coupled with the front back beam assembly, and a first body coupling part provided on the front back beam assembly and engaged with the first mounting part.

A method of manufacturing a bumper for impact absorption and a bumper for the impact absorption manufactured from the same are provided. The method includes: filling solid salts in a mold, injecting a molten metal into the mold, and solidifying the molten metal with the solid salts to obtain a solidified product, spraying water onto the solidified product to dissolve the solid salts, which results in obtaining a porous metal having pores, disposing the porous metal in an injection mold, and injecting-inserting a resin composite into the injection mold to surround the porous metal while filling at least a part of the pores in the porous metal.

A method of manufacturing a bumper for impact absorption and a bumper for the impact absorption manufactured from the same are provided. The method includes: filling solid salts in a mold, injecting a molten metal into the mold, and solidifying the molten metal with the solid salts to obtain a solidified product, spraying water onto the solidified product to dissolve the solid salts, which results in obtaining a porous metal having pores, disposing the porous metal in an injection mold, and injecting-inserting a resin composite into the injection mold to surround the porous metal while filling at least a part of the pores in the porous metal.

An assembly of an aluminum-based part and a press hardened steel part provided with an alloyed coating including in weight percent, 0.1 to 15.0% silicon, 15.0 to 70% of iron, 0.1 to 20.0% of zinc, 0.1 to 4.0% of magnesium, the balance being aluminum, on at least one of the surfaces thereof placed so as to be in contact with the aluminum-based part.