The cavity expansion theory is a common method to establish an engineering model for penetration problems.Based on a target’s elastic-cracked-comminuted response model,a new semi-infinite spherical cavity expansion model for brittle materials,such as,rock and concrete was built here.The material in the comminuted region was assumed to obey Hoek-Brown yield criterion.The static cavity expansion stress was obtained,and used as an alternative for the penetration resistance in the two-stage penetration model proposed by Forrestal.A predicting model of penetration depth for rigid projectiles penetrating a semi-infinite brittle material target was developed.It was shown that compared with previous models，the proposed prediction model here is more adaptive，especially,for high strength concrete and rock targets.
曹扬悦也1，蒋志刚1，谭清华1，蒙朝美1. 基于Hoek-Brown准则的混凝土-岩石类靶侵彻模型[J]. 振动与冲击, 2017, 36(5): 48-53.
CAO Yangyueye,JIANG Zhigang,TAN Qinghua,MENG Chaomei. Penetration model for concrete-rock targets based on hoek-brown criterion. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(5): 48-53.
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