Crash protection element, its use and method for its manufacture
A crash protection element, its manufacture and its use are disclosed. The crash protection element is formed by a hollow body element with or from a fiber composite. The hollow body element has in its interior one or more stabilizing and/or compression elements, which are attached on the interior sides of respective front and rear wall elements of the hollow body element in or against a suspected impact direction. The one or more stabilizing/compression elements are constructed either in form of a hollow body or in form of a multi-undulated intermediate wall element.
1. A crash protection element for a vehicle body for absorbing and/or dissipating kinetic energy caused by a force impacting the vehicle body, comprising:
a hollow body element comprising a fiber composite and having a front wall element facing a suspected impact direction and a rear wall element facing away from the suspected impact direction, said front and rear walls of the hollow body element bounding an interior space, and
a stabilizing/compression element arranged in the interior space of the hollow body element and attached on interior sides of the front and rear wall elements of the hollow body element,
wherein the stabilizing/compression element is constructed in at least one of two ways, a first way in which the at least one stabilizing/compression element is configured in form of a hollow body, a second way in which the stabilizing/compression element is configured in form of a multi-undulated intermediate wall element.
2. The crash protection element of claim 1 , wherein the hollow body of the stabilizing/compression element has a constant diameter or cross-section between a side facing away from the suspected impact direction and a side facing the suspected impact direction.
3. The crash protection element of claim 1 , wherein the hollow body is shaped as a vertical or oblique cylinder with a base shaped as a circle, an ellipse, or a polygon.
4. The crash protection element of claim 1 , wherein the hollow body is formed with or from at least one fiber composite.
5. The crash protection element of claim 1 , further comprising a plurality of said stabilizing/compression element in the form of hollow bodies arranged in one or more rows which extend perpendicular to the suspected impact direction or in a longitudinal direction of the hollow body element.
6. The crash protection element of claim 1 , wherein exterior sides of front and rear wall elements forming end faces of the hollow body are attached to corresponding interior sides of the front and rear wall elements of the hollow body element.
7. The crash protection element of claim 1 , wherein the multi-undulated intermediate wall element defines an undulation direction which extends perpendicular to the suspected impact direction or to a longitudinal direction of the hollow body element.
8. The crash protection element of claim 1 , wherein the multi-undulated intermediate wall element has a front edge and a rear edge, wherein the front and rear edges are attached to the interior sides of the front and rear wall element of the hollow body element.
9. The crash protection element of claim 1 , wherein the multi-undulated intermediate wall element is formed with or from at least one fiber composite.
10. The crash protection element of claim 1 , wherein the fiber composite comprises at least one material selected from the group consisting of CFK material, glass material, aramide material, natural fiber material, and basalt material.