A structural reinforcement for a vehicle comprising: a) a carrier having a base wall from which a plurality of projections extend, the plurality of projections including at least one first projection and at least one second projection and the at least one first projection having a height greater than a height of the at least one second projection; b) an activatable material which is heat activatable and affixed to the carrier, configured to secure the carrier in a cavity of the vehicle; wherein in event of an impact, the at least one first projection and second projection are configured to deform toward the base wall and/or in a direction of an impact load in response to the impact load; and the at least one first projection is configured to receive the impact load and deform before the at least one second projection receives the impact load and deforms.

The present teachings provide a reinforcement for a cavity. The reinforcement may include a carrier having a length extending along an axis between a first end and a second end. The carrier may include one or more longitudinal structures and one or more transverse structures. The carrier may also include one or more walls joined together to form one or more cavities extending along the axis. The carrier may have a cross-sectional shape roughly corresponding to the cross-sectional shape of interior of a hollow structural member. The device may also include a secondary material placed over the carrier. The secondary material is configured to expand, seal, reinforce, or a combination thereof upon application of a selectable stimuli and adhere to the interior of the cavity to provide reinforcement of the same.

The present teachings provide a reinforcement for a cavity. The reinforcement may include a carrier having a length extending along an axis between a first end and a second end. The carrier may include one or more longitudinal structures and one or more transverse structures. The carrier may also include one or more walls joined together to form one or more cavities extending along the axis. The carrier may have a cross-sectional shape roughly corresponding to the cross-sectional shape of interior of a hollow structural member. The device may also include a secondary material placed over the carrier. The secondary material is configured to expand, seal, reinforce, or a combination thereof upon application of a selectable stimuli and adhere to the interior of the cavity to provide reinforcement of the same.

A blank (100) includes a main portion (110) that is made of steel having a tensile strength of 1450 MPa or more and a softened portion (120), the ratio of Vickers hardness of the softened portion (120) to the Vickers hardness of the main portion (110) is 0.7 or more and 0.95 or less, and the softened portion (120) is disposed at a position different from a position of the main portion (110) in an in-plane direction. A structural member (200) includes a first member (210), a second member (220), and a weld (W) at which the first member (210) and the second member (220) are welded to each other.

An aluminum cast part of a motor vehicle includes at least two upper walls rising from a bottom wall to form a passage, and at least two lower walls extending the upper walls beyond the bottom wall. The upper and lower walls form, with the bottom wall, a cross-section transverse to the passage which is generally H-shaped. In one or more predetermined cross-sections, at least one upper inner rib extends inside the H and transversely to the upper walls and the bottom wall, at least one outer rib extends outside the H to form an extension of the upper inner rib, and at least one lower inner rib extends inside the H to form an extension of the upper inner rib. A height of the upper inner rib in a central area of the H is compensated for by a height of the lower inner rib in the central area.

A collision resistance performance of a structural member is effectively improved while suppressing an unnecessary increase in mass of the structural member. The structural member includes a hollow member and a tension member. The hollow member forms a closed cross-sectional shape by a top sheet portion, a pair of sidewall portions each continuous to each side of the top sheet portion in a width direction, and a bottom sheet portion arranged to face the top sheet portion. The tension member is formed by a metal sheet extending along the width direction of the top sheet portion and being thinner than the sheet thickness of the hollow member, and connects inner surfaces of the pair of sidewall portions facing each other to each other to restrain the distance between the pair of sidewall portions from increasing.

A structural member (10) comprising: (i) a first carrier (12A) and a second carrier (12B), each carrier including a plurality of interconnecting ribs (16), each carrier further including one or more projections (28) extending from exterior walls (30) of each carrier; (ii) one or more secondary members (14) secured to one or more surfaces of each carrier; and (iii) an adhesive material (32) disposed on the first carrier (12A), the second carrier (12B), or both, wherein the first carrier (12A) and the second carrier (12B) are bonded to each other via the adhesive material (32).

The present invention provides an overlapping bonded structure in which breaking of a bonded section at holes formed during bonding can be prevented when an overlapping section formed by overlapping a plurality of meal plate members is bonded by means of a mechanical bonding means or a friction stir spot-welding means. This overlapping bonded structure, in which overlapping portions of a plurality of plate members are spot-welded at a plurality of bonded sections by means of a mechanical bonding means or a friction stir spot-welding means, and in the bonded sections a hole into which the mechanical bonding means is inserted or a hole formed during the spot-welding by the friction stir spot-welding means exists in at least one plate member, is characterized in that a cutout recess is formed between adjacent bonded sections, from an end portion of the overlapping section in the bonded-section direction, in the overlapping section of at least one of the plate sections, and when the inner diameter of the hole is K, an inside bottom portion of the cutout recess is formed at a position having a depth of K or greater from the end portion of the overlapping section.

This frame member includes a corner section extending along the longitudinal direction; a first wall section extending from an end portion of the corner section in a direction orthogonal to the longitudinal direction; and a second wall section extending from an opposite end portion of the corner section, wherein the corner section is formed with a deformation starting portion from which a deformation starts when a load is input to the frame member in the longitudinal direction, the deformation starting portion having a shape protruding to an inner bending side or an outer bending side of the corner section, and an average hardness value H.sub.(K1) at a first region is equal to or greater than 330 Hv in Vickers hardness, and a 3-sigma range of a standard deviation σ in a frequency distribution of the hardness at the first region is equal to or greater than 60, the first region being located at a portion outwardly apart from an end portion of the deformation starting portion in the longitudinal direction by 10 mm in the longitudinal direction, at a depth of ¼ thickness of the frame member from a surface.

An automotive-structural-part joint structure is formed by bending one metal sheet, includes a groove portion including a top portion and a pair of side wall portions, is provided at an end part of one automotive structural part in a longitudinal direction, and is configured to join the one automotive structural part to another automotive structural part in an intersecting direction. The automotive-structural-part joint structure includes: a pair of vertical rib portions configured to stand upward from both side ends of the top portion; and an outward-directed flange portion configured to extend outward from three side edges of the groove portion on an end part side where the other automotive structural part is joined, the flange portion being continuously formed along the three side edges.