The study of the failure characteristics of buoyancy materials is of great significance for improving the safety and usability of manned/unmanned submersibles. This paper adopts a research method that combines experiments and simulations to investigate the impact mechanisms of various variables on the collapse sequence and failure strength of hollow glass microspheres. These variables include the ratio of inner to outer diameter, outer diameter size, and the volume fraction of hollow glass microspheres in the buoyancy material. Using ABAQUS software, a two-dimensional multi-microsphere model is constructed. By setting different single variables, the failure process of the buoyancy material is analyzed, and the variations in compressive strength and the collapse sequence of the hollow glass microspheres under different single-variable conditions are presented. The finite element analysis results are compared with experimental data, showing good agreement between the two, which demonstrates the effectiveness and reliability of the simulation model.

Wenyan Tang, Limin Yu, Bo Gao. Research on the damage characteristics of buoyant materials under compressive load. Academic Journal of Materials & Chemistry (2024) Vol. 5, Issue 3: 1-8. https://doi.org/10.25236/AJMC.2024.050301.

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