水下非接触性爆炸作用下六韧带空腔覆盖层的抗冲特性

A study of the shock resistance of hexachiral honeycomb layer subjected to non-contact underwater explosion

为了研究六韧带空腔覆盖层在水下非接触爆炸作用下的抗冲特性,采用大型有限元软件ABAQUS建立了水下非接触性爆炸六韧带空腔覆盖层有限元计算模型,模拟计算了六韧带手性蜂窝结构覆盖层水下非接触性爆炸作用下的抗冲特性以及材料密度对覆盖层结构的防护抗冲性能的影响。计算结果表明:超弹性材料的密度对覆盖层结构的动能和结构上表面中点速度的响应影响较大,而对结构的内能和结构上表面中点位移的响应影响较小。

To study the anti-impact properties of the chiral honeycomb layer covered structure subjected underwater non-contact explosion, the finite element model was developed in this study by using finite element software ABAQUS to simulate and calcu-late influence of the impact resistance and the effect of material density on the resistance of the cladding structure. The results showed that the density of the hyper-elastic material could affect the response of the midpoint velocity of the structure and the ki-netic energy of the structure. However, there was no significant influence on the response to the internal energy of the structure and the displacement of the midpoint of the structure.