Assessment Methods and Systems for the Internal Blast Damage Capability of Brittle Ceramic Pressure Shells

Abstract

This invention provides a method and system for assessing the damage capability of brittle ceramic pressure hulls during implosion, relating to the technical field of underwater implosion and structural damage assessment. The method includes: Step S1: Initializing parameters to obtain the hydrostatic pressure of the deep-sea submersible; Step S2: Calculating the hydrodynamic pressure of the rarefaction waves and shock waves generated by the underwater implosion of the ceramic sphere pressure hull; Step S3: Fitting the attenuation formula of the spherical wave signal generated by the implosion to obtain the variation law of the spherical wave peak with radius; Step S4: Obtaining the ultimate bearing capacity of the adjacent underwater structure using the attenuation formula to determine the damage characteristics. This invention can rapidly assess the damage effect of the rarefaction waves and shock waves generated by the ceramic sphere during underwater implosion on adjacent underwater structures and can provide the spherical wave propagation characteristics after the underwater implosion of the ceramic sphere, which is of great significance for the design of deep-sea submersibles.

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