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所属单位：航空学院

发表刊物：JOURNAL OF COMPOSITE MATERIALS

关键字：Composite material frangible cover transient-dynamics model approximate Riemann algorithm failure analysis

摘要：A transient-dynamics model based on the approximate Riemann algorithm is proposed for the failure analysis of a frangible composite canister cover. The frangible cover, manufactured with a traditional manual lay-up method, is designed to conduct a simulated missile launch test using a specially developed test device. Deformation of the cover's centre is determined using a transient-dynamics finite element model; failure pressure for the frangible cover is obtained based on a failure criterion and compared with simulated experimental results. Weak-zone position of the frangible cover has a significant effect on failure pressure compared to that of deformation of the cover's centre. With the same structure of the weak-zone, an increase in its height can first raise and then reduce the level of failure pressure of the frangible cover. Close agreements between the experimental and numerical results are observed.

ISSN号：0021-9983

是否译文：否

发表时间：2017-08-01

合写作者：Cai, Deng'an,Qian, Yuan,Silberschmidt, Vadim V.

通讯作者：周光明