聚氨酯泡沫铝与SFFAC抗爆机理研究

The background of research projects is that the resistance of concrete used in the construction of existing protection engineering is very weak and is not adapt to the weapons development. Double doped silicon powder and fly ash concrete (abbreviated as SFFAC) has a good antiknock performance. Polyurethane foam aluminum has good energy absorption performance. So the polyurethane foam aluminum and SFFAC material is built to improve impact resistance of the engineering and antiknock ability. By SHPB impact test and charge explosion test，dynamics performance and antiknock performance of polyurethane foam aluminum and SFFAC are revealed. In turn, after explosion damaged the strength, deformation characteristics and dynamic constitutive model of the polyurethane foam aluminum and SFFAC can be revealed.The main research content includes: polyurethane foam aluminum and SFFAC SHPB impact test; Polyurethane foam aluminum and SFFAC charge explosion test, set up the nonlinear dynamic constitutive model of the polyurethane foam aluminum and SFFAC , antiknock mechanism analysis of the polyurethane foam aluminum and SFFAC, verification and correction of the test results by numerical simulation experiment, according to the antiknock goals the optimum combination configuration of the polyurethane foam aluminum and SFFAC is determined, protective ability evaluation under different protective target.

项目研究以现有防护工程建设中所使用的混凝土抗力和武器发展不相适应，防护能力十分薄弱为背景。在认识到硅粉和粉煤灰双掺混凝土（缩写为SFFAC）具有良好的抗爆性能，结合聚氨酯泡沫铝具有很好的吸能性能的基础上，拟根据聚氨酯泡沫铝和SFFAC材料的冲击试验和爆炸试验，揭示聚氨酯泡沫铝与SFFAC的动力学性能和抗爆性能。包括：聚氨酯泡沫铝和SFFAC爆炸破坏后的强度、变形特征，动力学本构模型分析，聚氨酯泡沫铝和SFFAC动力学性能影响因素分析，聚氨酯泡沫铝和SFFAC优化组合配置，不同防护目标下防护能力评价。这对提高现有防护工程抗力具有重要意义。

项目研究以现有防护工程建设中所使用的混凝土抗力和武器发展不相适应，防护能力十分薄弱为背景。硅粉和粉煤灰双掺混凝土（缩写为SFFAC）具有良好的抗爆性能，而聚氨酯泡沫铝具有很好的吸能性能，因此本项目通过理论分析、数值模拟、室内试验和野外爆炸试验多种手段相结合的方法，以聚氨酯泡沫铝材料和SFFAC材料为研究对象展开系统研究。建立了SFFAC材料的动态本构模型和损伤本构模型；揭示了SFFAC材料的动态损伤破坏机理；建立了SFFAC材料在不同冲击速度下的最优化配比；建立了聚氨酯泡沫铝材料爆炸条件下的动态本构模型； 揭示了SFFAC材料和聚氨酯泡沫铝材料复合结构抗爆条件下的吸能特性和相关影响因素；结合理论分析和数值模拟，提出了在工程应用中对复合结构的最优化选择方法。发表标注的期刊论文20篇，其中SCI收录3篇，EI收录1篇；培养博士生3名，硕士生8名；出席国际学术会议1人次。