期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：237
期号：3
页码：032060
DOI：10.1088/1755-1315/237/3/032060
出版社：IOP Publishing
摘要：The explosion of rocket poses a serious threat to the payload in it. LS-DYNA software is used to analyze co-bottom explosion of the third stage in flight. The damage mechanism of explosion to the structure of the rocket body and the storage tank is mainly studied, and effect of shock peak overpressure, positive pressure time and specific impulse on the payload is evaluated. The results show that: the model can reflect the destruction mechanism of rocket structure explosion. Secondly, the closer the payload is to the explosive core, the more destructive the blast wave will be to it. What's more, overpressure value is much larger than the upper limit of overpressure criterion, which will cause serious damage to the payload. The results may provide a reference for the safety protection design of the payload in the rocket.
