Full scale air blast testing has been performed on a range of polymeric foam composite panels. These panels employed glass fibre reinforced polymer (GFRP) face-sheets with different polymer foam cores, namely: Styrene acrylonitrile (SAN); Polyvinylchloride (PVC) and Polymethacrylimide (PMI). The three sandwich panels were all subjected to 100 kg TNT equivalent blast loading at a stand-off distance of 15 m, and the responses of the panels were measured using Digital Image Correlation (DIC). The extent of damage in the sandwich panels was then inspected via post-blast sectioning, and it was found that the SAN core suffered the least damage, and the PMI suffered the most. The DIC showed that the deflection of the SAN core sandwich panel was much less than the other two foam polymer cores, due to less damage meaning a greater stiffness was retained. All blast research to date is part of a programme sponsored by the Office of Naval Research (ONR).
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机译：已对一系列聚合物泡沫复合板进行了全面的鼓风测试。这些面板使用具有不同聚合物泡沫芯的玻璃纤维增强聚合物（GFRP）面板，即：苯乙烯丙烯腈（SAN）；聚氯乙烯（PVC）和聚甲基丙烯酰亚胺（PMI）。三个夹芯板均在15 m的支撑距离处承受100 kg TNT等效爆炸载荷，并使用数字图像相关性（DIC）测量板的响应。然后，通过喷砂后的切片检查来检查夹芯板的损坏程度，发现SAN芯受到的损坏最少，而PMI遭受的损坏最多。 DIC显示，SAN芯夹芯板的挠度比其他两个泡沫聚合物芯小得多，这是因为损伤较小，意味着保留了更大的刚度。迄今为止，所有爆炸研究都是海军研究办公室（ONR）赞助的计划的一部分。
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