首页> 外文会议>ESA SP-587; European Conference on Space Debris; 20050418-20; Darmstadt(DE) >ON FRAGMENTATION OF ALUMINUM PROJECTILE ON MESH BUMPERS
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ON FRAGMENTATION OF ALUMINUM PROJECTILE ON MESH BUMPERS

机译:筛上铝丸的碎裂研究

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Presented results of tests in which 6.35-mm diameter (D_0) aluminum sphere projectiles impacted bumpers consist of single or several steel meshes. There were used two types of meshes with the parameter ε = D_0 /(d_w+l) ~ 2 for one type and ε ~ 5 for other one (d_w wire diameter and l mesh size). The thin and thick plates of aluminum alloy placed on path of debris have been used as witnesses to get data for mass distribution of fragments behind the bumpers. The type of fragmentation (character of craters or holes distribution on the witness surface) for the meshes of different type was found to be quite unlike. There is a big central leader and small fragments with wide lateral dispersion for mesh with ε ~ 5 and no central compact leader, but several similar big fragments for meshes with ε ~ 2. The relative distribution of mass is estimated.
机译:给出的试验结果是,直径为6.35毫米(D_0)的铝球弹撞击保险杠时,该试验由单个或多个钢网组成。使用两种类型的网格,其中一种类型的参数为ε= D_0 /(d_w + 1)〜2,另一种类型的参数为ε〜5(d_w线径和1目尺寸)。放置在碎片路径上的铝合金薄板已被用作见证,以获取保险杠后面碎片的质量分布数据。发现不同类型的网格的碎片类型(凹坑的特征或在见证表面上的孔分布)完全不同。对于具有ε〜5的网格,有一个大的中心前导和较小的横向分散的碎片,而没有中央紧凑的前导,但是对于具有ε〜2的网格,有几个类似的大碎片。

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