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研究二氧化硅过渡层表面开口孔的大小对航空层合玻璃力学性能的影响。利用扫描电镜测试分析多孔二氧化硅过渡层的表面开口孔形貌,利用万能试验机测试含多孔二氧化硅过渡层的层合玻璃中无机玻璃/聚氨酯界面的剪切强度。以实验获得的开口孔形状为依据,以ANSYS软件建立含多孔二氧化硅过渡层的层合玻璃有限元实体模型,模拟获得不同孔面积条件下的多孔二氧化硅/聚氨酯界面的张应力。结果表明:随着多孔二氧化硅孔面积的增加,层合玻璃中无机玻璃/聚氨酯界面的剪切强度先迅速增大后缓慢降低;当单孔面积为52.61μm~2时,制备的层合玻璃有较好的力学性能。
The influence of the size of open pores on the surface of silica transition layer on the mechanical properties of aviation laminated glass was investigated. The morphology of the open pores in the surface of the porous silica transition layer was analyzed by scanning electron microscopy. The shear strength of the inorganic glass / polyurethane interface in the laminated glass containing the porous silica layer was tested by a universal testing machine. Based on the shape of the open pores obtained experimentally, a solid glass laminar glass finite element model with porous silica transition layer was established with ANSYS software to simulate the tensile stress of the porous silica / polyurethane interface with different pore area. The results show that with the increase of porous silica pore area, the shear strength of inorganic glass / polyurethane interface in laminated glass first increases rapidly and then decreases slowly. When the area of single hole is 52.61μm ~ 2, Glass has good mechanical properties.