中国舰船研究2016，Vol.11Issue(4)：51-58,66,9.DOI:10.3969/j.issn.1673-3185.2016.04.008
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
Impact experiment of six-layer pyramidal lattices sandwich panels subjected to near field underwater explosion
摘要
Abstract
To investigate the explosion resistance of multilayered pyramidal lattices panels subjected to near field underwater explosion(UNDEX), the UNDEX experiment is carried out, the distortional energy of the model is simulated, which reveals the deformation mode of multilayered pyramidal lattices. The whole pyramidal lattices structure presents dynamic buckling deformation, and in particular, the thicker upper panel is seen to have integral settlement deformation, sandwich panels between buckling cores present wave wrinkle deformation, and the bottom panel absorbs energy through bending and tensile deformation. The results show that though the first and sixth sandwich cores are more severely damaged, the energy ab?sorption of sandwich cores protects the bottom panel to a certain extent.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Key words
pyramidal lattices/sandwich panel/underwater explosion/energy absorbing/experimental research/numerical simulation分类
交通工程引用本文复制引用
张振华,牛闯,钱海峰,王媛欣..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[J].中国舰船研究,2016,11(4):51-58,66,9.基金项目
国家级重大基础研究项目 （）
国家自然科学基金资助项目(51409253) （51409253）
