Research on fragmentation behavior of ceramic panel and backplane driven by detonation
In order to study the fragmentation behavior of ceramic plate under detonation load,the detonation driving process was numerically calculated by AUTODYN software.Through the analysis of the interaction process between detonation wave and ceramic plate and the characteristic size statistics of ceramic fragments,the crack propagation law of ceramic plate and the scale distribution law of ceramic fragments were obtained.The results show that the propagation process of detonation wave in different ceramic plate chambers and their action processes are similar to those of ceramic plates,but the expansion and morphology of ceramic cracks are different.The non-splicing ceramic plate forms grid cracks,while the splicing ceramic plate presents circumferential cracks and radial cracks.The ceramic fragment size formed by the ceramic plate chamber under detonation load satisfies the Rosin-Rammler distribution model.The proportion of mass distribution of ceramic fragments in different scales is determined by the power exponent coefficient k.The overall damage degree of ceramic plate can be judged by the average characteristic size coefficient λ.Considering the low collateral damage characteristics of ceramic plate chambers,it is appropriate to select small sized ceramic plates for ceramic plate splicing,the results of this research can provide reference for the application of ceramic plate chamber in light armored vehicles.
NETL
NSTL
万方数据
维普
