| 摘要 |
<p>The invention discloses a composite material of triangular cavity structure, which includes a lot of triangular prism cavities. The material at least has one layer composed of many abreast arranged triangular prism cavities, and including an intermediate layer, the cross section of which is toothed, and liner layers, which are connected to the tip angles at both sides of the toothed intermediate layer. If the material includes two layers of said triangular prism cavities layers or more, the angle between the adjoining layers of triangular prisms cavities is 0°-90°.</p> |
