泡沫陶瓷夹芯板在牛顿和非牛顿流体中的准静态穿孔
Quasi-static perforation of the ceramic foam core sandwich panels impregnated with Newtonian and non-Newtonian fluids
摘要：
本文对填充牛顿流体和非牛顿流体的泡沫陶瓷夹芯板在准静态压入载荷作用下的力学响应和能量吸收进行了实验研究。此外，还讨论了面板层数（面板厚度）和边界条件对夹层板力学响应和能量吸收的影响。夹层板由两个不同厚度的玻璃/环氧树脂面板（4层和8层）和一个开孔陶瓷泡沫芯组成。该泡沫用牛顿（甘油）和非牛顿（乙二醇和Aerosil的混合物）流体饱和。夹层板在两种不同的支撑条件下进行了测试，简支和完全固定（夹紧）。结果表明，纯复合材料和STF填充的夹层板的损伤面积远高于甘油填充的泡沫芯夹层板。此外，STF饱和夹层板吸收更高的能量相比，其他两种类型的夹层板在准静态冲剪试验。
英文摘要：
In this research, Mechanical response and energy absorption of ceramic foam sandwich panels filled with Newtonian and non-Newtonian fluid subjected to quasi-static indentation loads were investigated experimentally. In addition, the effects of number of face-sheet layers (face-sheet thickness) and boundary conditions on the mechanical response and energy absorption of sandwich panels were discussed. Sandwich panels consisted of two glass/epoxy face-sheets with different thicknesses (4 and 8 layers) and an open cell ceramic foam core. This foam saturated with Newtonian (Glycerol) and non-Newtonian (mixture of Ethylene glycol and Aerosil) fluids. Sandwich panels were tested in two different kinds of supporting conditions, simply-supported and fully fixed (clamped). Results showed that damage area in neat composite and STF filled sandwich panels are much higher than the glycerol filled foam core sandwich panels. Also, STF saturated sandwich panels absorbed higher energy compared with two other type of sandwich panels during quasi-static punch shear test.
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