Autotech Engineering A.i.e.

Matthieu Dunand

Christophe Cazes

Sergi Marquez Duran

Gregory Gatard

Emmanuel Leroy

Xavier Valencia Carrio

Vincent Barelli

Matthieu Niess

Lluis Espana De Juan

Grégory Gatard

Lluis ESPAÑA De Juan

A beam comprising a first portion having a U-shaped cross-section, wherein the U-shape comprises a bottom and a first and a second side wall extending substantially perpendicular to the bottom, and wherein the first and/or the second side wall comprises a first substantially straight portion, a second substantially straight portion and a side transition zone between the first and the second substantially straight portion. The disclosure further relates to bumpers, rocker panels, side impact beams and B-pillars comprising such beams and to vehicles incorporating such components.

Beams with U-shaped cross-section

A beam provided with at least one first part that has a main body with an overall U-shaped straight cross-section provided with lateral flanges protruding outwards from the sides of the U, the main body further comprising a bottom part as well as two wings forming the sides of the U. The central portion of the main body defines cells working under tension and under compression, respectively, on either side of a neutral main bending axis formed by two transition zones, which are each located between the U-shaped element and a lateral flange. The bottom part of the main body comprises at least one transition formed by a curvature discontinuity. And at least one wing comprises at least one transition formed by a curvature discontinuity.

Beam for producing a metal framework

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Paris, France

Matthieu Dunand