泡沫夹层复合材料导弹发射箱盖损伤失效研究  

Damage Analysis for Foam Core Sandwich Cover of Missile Launching Canister

作　　者：冯维超[1] 周光明[1] 王新峰[1] 陈海立[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《玻璃纤维》2014年第1期43-48,共6页Fiber Glass

摘　　要：针对泡沫夹层结构箱盖受燃气流冲击问题进行了实验和数值分析。首先根据试验得出箱盖的破坏形式,然后建立了箱盖三维渐进损伤模型,采用该模型揭示了箱盖的层合板、泡沫和胶层的损伤破坏形式,数值仿真结果与实验结果非常吻合,证明该方法的合理性。结果表明箱盖侧边最易发生损伤破坏,其起始损伤由泡沫所引起,胶结界面没有破坏。该模型可以很好预测箱盖损伤起始、损伤扩展和破坏模式。Both numerical analysis and experimental test core sandwich cover under combustion-gas flow. Firstly, the result, a three-dimensional （3 D） progressive damage were conducted to analyze the the failure mode was obtained model of the cover was built to impact performance of foam from the test. According to predict the failure modes of the laminate, foam and cohesive interface. The result of the simulation was identical to the test result, proving the effectiveness of the model. The result revealed that the side of the cover was inclined to damage first, which was caused by the foam, and no damage was found in the adhesive interface. The model can accurately damage initiation, progressive damage process and failure mode of the cover. predict the

关 键 词：夹层结构 导弹发射箱盖 渐进损伤模型 数值分析 

分 类 号：TQ171.777.77[化学工程—玻璃工业]