Dynamic Response Behaviours of Al2O3 Ceramics with Different Grain Sizes under SHPB Compression Loading

Yuan Fei Gao; Juan Wang; Qing Yu Li; Yan Hua Ding

doi:10.4028/p-7b0087

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 922Dynamic Response Behaviours of Al2O3 Ceramics with...

Dynamic Response Behaviours of Al₂O₃ Ceramics with Different Grain Sizes under SHPB Compression Loading

Abstract:

Alumina is the most promising ceramic armor material and SHPB testing is typically used to investigate dynamic deformation behaviour and ballistic mechanisms. In this research the effect of the incident wave shaping technique on the stress equilibrium state during testing was analysed. The compressive strength of alumina ceramic materials was evaluated under high strain rate compressive loads of 1200-1800/s. The SHPB compression strength was found to increase with decreasing grain size to a maximum of 3.80±0.25 GPa, and the ceramic materials studied exhibited high strain-rate sensitive mechanical properties due to crack tip inertia effects.

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Periodical:

Key Engineering Materials (Volume 922)

Pages:

45-51

DOI:

https://doi.org/10.4028/p-7b0087

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Online since:

June 2022

Authors:

Yuan Fei Gao*, Juan Wang, Qing Yu Li, Yan Hua Ding

Keywords:

Alumina Ceramics, Dynamic Compression Response, Grain Size, SHPB Loading

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* - Corresponding Author

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