六层金字塔点阵夹芯板结构在水下近距爆炸载荷下的冲击实验

发布时间：2018-02-02 03:11

本文关键词： 金字塔点阵夹芯板水下爆炸吸能实验研究数值仿真　出处：《中国舰船研究》2016年04期 　论文类型：期刊论文

【摘要】：为研究多层金字塔点阵夹芯板结构在水下近距爆炸载荷下的抗爆性能,加工制作了六层金字塔点阵夹芯板结构模型,通过水下爆炸实验,揭示了多层金字塔点阵夹芯板结构的变形模式,并对模型结构进行数值仿真,分析了夹芯板结构的吸能情况。上面板呈整体下沉变形模式;金字塔点阵夹芯结构存在动态屈曲变形模式;屈曲芯层之间的夹层板呈波浪褶皱变形;下面板呈平台变形模式,靠弯曲和拉伸变形吸能。实验结果表明:夹芯结构的第1层和第6层破坏较为严重,同时由于夹芯层的吸能作用,对下面板起到了一定的缓冲防护作用。
[Abstract]:In order to study the anti-explosion performance of the multi-layer pyramid lattice sandwich board structure under underwater close-range explosion load, a six-layer pyramid lattice sandwich plate structure model was fabricated, and the underwater explosion experiment was carried out. The deformation mode of the multi-layer pyramid lattice sandwich panel structure is revealed, and the numerical simulation of the model structure is carried out, and the energy absorption of the sandwich plate structure is analyzed. The pyramid lattice sandwich structure has dynamic buckling deformation mode. The sandwich plate between the buckling core layer is wave-fold deformation. The results show that the first layer and the sixth layer of the sandwich structure are damaged seriously, and the energy absorption of the sandwich layer is also due to the energy absorption of the sandwich layer. For the lower panel to play a certain role in buffer protection.
【作者单位】：海军工程大学舰船工程系;
【基金】：国家级重大基础研究项目国家自然科学基金资助项目(51409253)
【分类号】：U674.70
【正文快照】： 0引言近年来,将点阵结构应用到舰艇上以提高其抗爆抗毁伤性能的研究引起了舰船学术界的关注。对于点阵夹芯结构的研究,国内则主要集中于其静态力学性能。熊健等[1]提出利用碳纤维预浸料细条通过模具来制备金字塔点阵结构,并利用此制备工艺制作出4种成型的金字塔点阵结构,通过

【相似文献】