Disclosed is a polyolefin resin, a method for preparing the same, and a vehicle rear bumper beam using the same. The polyolefin resin is characterized by being composed of a thermoplastic resin composite including a polymer base including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant; and a fiber reinforcing material that is impregnated into the polymer base and has a length of 5 to 20 mm, wherein 10 to 50 wt % of the fiber reinforcing material is included with respect to the polyolefin resin. The method is characterized in that a thermoplastic resin composite is formed by impregnating a molten mixture including a polypropylene homopolymer, which has a molecular weight distribution of 2 to 10, and a colorant with a fiber reinforcing material having a length of 5 to 20 mm.

In an embodiment, multi-stage energy absorbing system can comprise: a thermoplastic flanged frame and a crush lobe having a proximal base aligned with the flanged frame and a distal end protruding from the flanged frame. The crush lobe comprises a central slab and slab pairs such that the crush lobe comprises a total of 2i+1 slabs, wherein i is the number of slab pairs and is greater than or equal to 1. The slabs are disposed in a stepped arrangement and configured to absorb impact energy by collapsing in a telescopic manner with increasing energy level. The single energy-absorbing system is able to absorb low energy impact associated with vehicle-to-pedestrian impact; simultaneously with the ability to mitigate damageability associated with low-speed vehicle-to-barrier impact, as well as damageability associated with vehicle-to-vehicle moderate speed impact, head-on, as well as at an angle.

An impact absorbing device may include a support beam with a first side and a second side opposite the first side. The first side may be designed to be closer to a passenger compartment of a vehicle than the second side. The support beam may also define a first aperture extending through the support beam from the first side to the second side. The impact absorbing device may also include an energy absorbing member associated with the second side of the support beam, which may defines a second aperture that is substantially aligned with the first aperture of the support beam. The first and second apertures may be configured to provide flow communication through the impact absorbing device.

A vehicle body structure includes a reinforcing member formed of a fiber reinforced resin and having a plate shape or a sheet shape and a metallic vehicle framework member. The vehicle framework member includes a rear wall portion and a reinforcing portion, one end face of the reinforcing member in a thickness direction of the reinforcing member being bonded to the rear wall portion and the reinforcing portion being disposed on the rear wall portion and protruding along a vertical direction from the rear wall portion.

A vehicle front structure (1) for a motor vehicle with a safety system (2) having a pressure tube (3) for detecting a pedestrian impact on a front region (11) of the motor vehicle, and with a cross member (4) extending transversely with respect to a longitudinal direction of the motor vehicle. The pressure tube (3) is arranged above the cross member (4), and therefore the pedestrian impact is detectable in a load plane (5) above a load plane (15) defined by the cross member (4).

A vehicle bumper assembly may include a fascia, a bumper beam arranged inside of the fascia including an upper portion and a lower portion, and a reinforcement block arranged only on the upper portion of the bumper beam and configured to absorb energy and to eliminate contact of the upper portion with the fascia during a collision.

Embodiments include a bumper reinforcement having a length including a first section and a second section. The reinforcement includes a reinforcement body made of a steel sheet and having a cross section that is open on one side and uniform along the length of the bumper reinforcement, the cross section of the body in at least the first section of the reinforcement including a high-strength portion and a low-strength portion, the high-strength portion having a first tensile strength, and the low-strength portion having a second tensile strength that is less than the first tensile strength. In an embodiment, the reinforcement further includes a closure closing the open side of the body within the first section of the reinforcement and joined to the body at the low-strength portion in the first section.

A configurable bumper for a vehicle may include a center body, one or more telescoping end assemblies adapted to slide in a direction parallel to the axis of the center body and perpendicular to the axis of vehicle, and a locking mechanism for each telescoping end assembly. The telescoping end assemblies may be secured in at least two different axial positions on the center body. A method for manufacturing a bumper may include forming bumper components in near-net shape by a profile extrusion process and sizing to length.

A vehicle bumper assembly may include a fascia, a bumper beam arranged inside of the fascia including an upper portion and a lower portion, and a reinforcement block arranged only on the upper portion of the bumper beam and configured to absorb energy and to eliminate contact of the upper portion with the fascia during a collision.

A bumper-face support member extending in a vehicle width direction in front of a vehicle-body member provided at a vehicle-body front portion and having an attachment portion where a bumper face is attached, plural brackets fixedly connecting the vehicle-body member and the bumper-face support member, a bumper beam extending in the vehicle width direction below the bumper-face support member, and a stay connecting the bumper-face support member and the bumper beam in a vertical direction are provide. The stay has a deformation promotion portion configured to be bent so as to promote deformation of the stay when a collision load is downwardly inputted to the bumper-face support member.