| 摘要 |
<p>The present invention relates to a technology applicable to structures, which need to be protected from external impact, such as pillars for supporting a bridge, box shapes like a container, chassis of a car, etc, capable of enhancing strength of supporting materials against impact load. The impact beam requires a predetermined strength so that the impact beam may not be broken under a specified impact load. When the impact beam is deformed, deformation energy must be higher than a predetermined level so that the impact beam may absorb the impact energy without being broken. A reinforced impact beam according to mode for invention of the present invention has an increased strength against buckling by reinforcing a central length portion and/or by embossing a beam surface. The reinforced impact beam according to mode for invention of the present invention may absorb relatively much impact energy compared with the conventional beam of the same amount of material. Accordingly the reinforced impact beam according to mode for invention of the present invention may be light and economical because the reinforced impact beam can be manufactured with less amount of material. Further the reinforced impact beam according to mode for invention of the present invention may reduce manufacturing cost by effectually and conveniently reinforcing the strength of the impact beam.</p> |
